{"id":4111,"date":"2026-01-15T13:51:30","date_gmt":"2026-01-15T05:51:30","guid":{"rendered":"https:\/\/laserdiode-ld.com\/?p=4111"},"modified":"2026-01-15T13:51:30","modified_gmt":"2026-01-15T05:51:30","slug":"%d8%b3%d8%b9%d8%b1-%d9%87%d9%86%d8%af%d8%b3%d8%a9-%d8%aa%d8%b5%d9%86%d9%8a%d8%b9-%d8%a7%d9%84%d8%b5%d9%85%d8%a7%d9%85-%d8%a7%d9%84%d8%ab%d9%86%d8%a7%d8%a6%d9%8a-%d8%a7%d9%84%d9%84%d9%8a%d8%b2%d8%b1","status":"publish","type":"post","link":"https:\/\/laserdiode-ld.com\/ar\/%d8%a7%d9%84%d8%b3%d8%b9%d8%b1-%d8%a7%d9%84%d9%87%d9%86%d8%af%d8%b3%d9%8a-%d9%84%d8%aa%d8%b5%d9%86%d9%8a%d8%b9-%d8%a7%d9%84%d8%b5%d9%85%d8%a7%d9%85-%d8%a7%d9%84%d8%ab%d9%86%d8%a7%d8%a6%d9%8a-%d8%a7","title":{"rendered":"\u062a\u0635\u0646\u064a\u0639 \u0627\u0644\u0635\u0645\u0627\u0645 \u0627\u0644\u062b\u0646\u0627\u0626\u064a \u0627\u0644\u0644\u064a\u0632\u0631\u064a \u0627\u0644\u0644\u064a\u0632\u0631\u064a \u0639\u0627\u0644\u064a \u0627\u0644\u0623\u062f\u0627\u0621: \u0627\u0644\u0647\u0646\u062f\u0633\u0629 \u0648\u0627\u0644\u0633\u0639\u0631"},"content":{"rendered":"

\u0641\u064a\u0632\u064a\u0627\u0621 \u0627\u0644\u062a\u0645\u0627\u0633\u0643: \u0641\u0647\u0645 \u0628\u0646\u064a\u0629 \u0627\u0644\u0635\u0645\u0627\u0645 \u0627\u0644\u062b\u0646\u0627\u0626\u064a \u0627\u0644\u0644\u064a\u0632\u0631\u064a<\/h3>\n\n\n\n

\u0644\u062a\u0642\u064a\u064a\u0645 \u0645\u0643\u0627\u0646 \u0634\u0631\u0627\u0621 \u062f\u064a\u0648\u062f \u0644\u064a\u0632\u0631<\/strong> \u0623\u0648 \u062a\u062d\u062f\u064a\u062f \u0645\u0627 \u0625\u0630\u0627 \u0643\u0627\u0646 \u0633\u0639\u0631 \u0627\u0644\u0635\u0645\u0627\u0645 \u0627\u0644\u062b\u0646\u0627\u0626\u064a \u0627\u0644\u0644\u064a\u0632\u0631\u064a<\/strong> \u0645\u0628\u0631\u0631\u060c \u064a\u062c\u0628 \u0623\u0648\u0644\u0627\u064b \u062a\u0641\u0643\u064a\u0643 \u0627\u0644\u062c\u0647\u0627\u0632 \u0639\u0644\u0649 \u0627\u0644\u0645\u0633\u062a\u0648\u0649 \u0627\u0644\u0630\u0631\u064a. \u0625\u0646 \u0644\u064a\u0632\u0631 \u062f\u064a\u0648\u062f<\/strong> \u0644\u064a\u0633\u062a \u0645\u062c\u0631\u062f \u0623\u0634\u0628\u0627\u0647 \u0645\u0648\u0635\u0644\u0627\u062a\u060c \u0628\u0644 \u0647\u064a \u0645\u0631\u0646\u0627\u0646 \u0628\u0635\u0631\u064a \u0645\u0635\u0645\u0645 \u0628\u062f\u0642\u0629. \u0648\u0639\u0644\u0649 \u0639\u0643\u0633 \u0645\u0635\u0627\u0628\u064a\u062d LED\u060c \u0627\u0644\u062a\u064a \u062a\u0639\u062a\u0645\u062f \u0639\u0644\u0649 \u0627\u0644\u0627\u0646\u0628\u0639\u0627\u062b \u0627\u0644\u062a\u0644\u0642\u0627\u0626\u064a\u060c \u0641\u0625\u0646 \u0644\u064a\u0632\u0631 \u062f\u064a\u0648\u062f \u0644\u064a\u0632\u0631<\/strong> \u062a\u0639\u0645\u0644 \u0639\u0644\u0649 \u0645\u0628\u062f\u0623 \u0627\u0644\u0627\u0646\u0628\u0639\u0627\u062b \u0627\u0644\u0645\u062d\u0641\u0632 \u062f\u0627\u062e\u0644 \u0648\u0633\u064a\u0637 \u0643\u0633\u0628.<\/p>\n\n\n\n

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The transition from a standard electronic component to a precision photonic tool occurs at the cleaved facets of the semiconductor crystal. These facets act as partially reflective mirrors, forming a Fabry-P\u00e9rot cavity. The round-trip gain must exceed the internal losses and the mirror losses for oscillation to occur. This tipping point is defined as the threshold current. For engineers looking to \u0634\u0631\u0627\u0621 \u062b\u0646\u0627\u0626\u064a\u0627\u062a \u0627\u0644\u0644\u064a\u0632\u0631<\/strong>, \u060c \u0641\u0625\u0646 \u0627\u0633\u062a\u0642\u0631\u0627\u0631 \u062a\u064a\u0627\u0631 \u0627\u0644\u0639\u062a\u0628\u0629 \u0639\u0628\u0631 \u062f\u0631\u062c\u0627\u062a \u062d\u0631\u0627\u0631\u0629 \u0645\u062a\u0641\u0627\u0648\u062a\u0629 \u0647\u0648 \u0627\u0644\u0645\u0624\u0634\u0631 \u0627\u0644\u0623\u0633\u0627\u0633\u064a \u0644\u0644\u062c\u0648\u062f\u0629 \u0627\u0644\u0641\u0648\u0642\u064a\u0629.<\/p>\n\n\n

\n
\"\"<\/figure>\n<\/div>\n\n\n

\u0627\u0644\u062f\u0642\u0629 \u0627\u0644\u0641\u0648\u0642\u064a\u0629: \u0623\u0633\u0627\u0633 \u062a\u0643\u0644\u0641\u0629 \u0627\u0644\u062a\u0635\u0646\u064a\u0639<\/h3>\n\n\n\n

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The thickness of the active quantum well\u2014often only a few nanometers\u2014must be controlled with atomic-layer precision. Any fluctuation in the thickness of the Gallium Arsenide (GaAs) or Indium Phosphide (InP) layers results in a shift in the emission wavelength. For high-precision applications, such as Raman spectroscopy or surgical lasers, a 2nm deviation can render a batch of chips useless. This yield rate is the invisible driver behind the \u0633\u0639\u0631 \u0627\u0644\u0635\u0645\u0627\u0645 \u0627\u0644\u062b\u0646\u0627\u0626\u064a \u0627\u0644\u0644\u064a\u0632\u0631\u064a<\/a><\/strong>.<\/p>\n\n\n\n

Furthermore, the management of strain in the crystal lattice is critical. By introducing “strained quantum wells,” manufacturers can modify the band structure to reduce the threshold current and increase the differential quantum efficiency. However, excessive strain leads to dislocations, which act as non-radiative recombination centers. These defects generate heat instead of light, leading to the dreaded Catastrophic Optical Damage (COD) at the laser facets.<\/p>\n\n\n\n

\u0627\u0644\u0647\u0646\u062f\u0633\u0629 \u0627\u0644\u062d\u0631\u0627\u0631\u064a\u0629 \u0648\u062a\u062e\u0645\u064a\u0644 \u0627\u0644\u0623\u0648\u062c\u0647<\/h3>\n\n\n\n

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\u062a\u0633\u062a\u062e\u062f\u0645 \u0627\u0644\u0634\u0631\u0643\u0627\u062a \u0627\u0644\u0645\u0635\u0646\u0639\u0629 \u0627\u0644\u0631\u0627\u0626\u062f\u0629 \u062a\u0642\u0646\u064a\u0627\u062a E2 (Epitaxy \u0627\u0644\u0627\u0633\u062a\u062b\u0646\u0627\u0626\u064a\u0629) \u0623\u0648 \u062a\u0642\u0646\u064a\u0627\u062a \u0637\u0644\u0627\u0621 \u0645\u062a\u062e\u0635\u0635\u0629 \u0644\u062a\u062e\u0645\u064a\u0644 \u0627\u0644\u0623\u0648\u062c\u0647\u060c \u0645\u0645\u0627 \u064a\u0631\u0641\u0639 \u0628\u0634\u0643\u0644 \u0641\u0639\u0627\u0644 \u0639\u062a\u0628\u0629 COD. \u064a\u062a\u064a\u062d \u0630\u0644\u0643 \u0644\u064a\u0632\u0631 \u062f\u064a\u0648\u062f \u0644\u064a\u0632\u0631<\/a><\/strong> \u0644\u064a\u062a\u0645 \u062a\u0634\u063a\u064a\u0644\u0647\u0627 \u0628\u062a\u064a\u0627\u0631\u0627\u062a \u0623\u0639\u0644\u0649 \u062f\u0648\u0646 \u0627\u0644\u062a\u0639\u0631\u0636 \u0644\u062e\u0637\u0631 \u0627\u0644\u062a\u0639\u0637\u0644 \u0627\u0644\u0645\u0641\u0627\u062c\u0626.<\/p>\n\n\n\n

From a packaging perspective, the choice of heat sink is non-negotiable. Whether it is a C-mount, TO-can, or Butterfly package, the thermal resistance ($R_{th}$) determines the junction temperature ($T_j$). The rule of thumb in the industry is that for every 10\u00b0C increase in junction temperature, the lifetime of the \u062f\u064a\u0648\u062f \u0644\u064a\u0632\u0631<\/strong> \u0625\u0644\u0649 \u0627\u0644\u0646\u0635\u0641. \u0644\u0630\u0644\u0643\u060c \u0639\u0646\u062f\u0645\u0627 \u0634\u0631\u0627\u0621 \u062b\u0646\u0627\u0626\u064a\u0627\u062a \u0627\u0644\u0644\u064a\u0632\u0631<\/strong>, \u0641\u0623\u0646\u062a \u0644\u0627 \u062a\u0634\u062a\u0631\u064a \u0631\u0642\u0627\u0642\u0629 \u0641\u062d\u0633\u0628\u060c \u0628\u0644 \u062a\u0634\u062a\u0631\u064a \u062d\u0644\u0627\u064b \u0644\u0644\u0625\u062f\u0627\u0631\u0629 \u0627\u0644\u062d\u0631\u0627\u0631\u064a\u0629.<\/p>\n\n\n\n

\u062f\u064a\u0646\u0627\u0645\u064a\u0643\u064a\u0627\u062a \u0627\u0644\u0633\u0648\u0642: \u0645\u0624\u0634\u0631\u0627\u062a \u0627\u0644\u062c\u0648\u062f\u0629 \u0645\u0642\u0627\u0628\u0644 \u0646\u0642\u0627\u0637 \u0627\u0644\u0633\u0639\u0631<\/h3>\n\n\n\n

\u0628\u0627\u0644\u0646\u0633\u0628\u0629 \u0644\u0645\u0648\u0638\u0641\u064a \u0627\u0644\u0645\u0634\u062a\u0631\u064a\u0627\u062a \u0627\u0644\u0630\u064a\u0646 \u064a\u0637\u0644\u0628\u0648\u0646 \u0645\u0646 \u0623\u064a\u0646 \u064a\u0645\u0643\u0646\u0643 \u0634\u0631\u0627\u0621 \u0627\u0644\u062b\u0646\u0627\u0626\u064a\u0627\u062a<\/strong> \u0627\u0644\u062a\u064a \u062a\u0648\u0627\u0632\u0646 \u0628\u064a\u0646 \u0627\u0644\u062a\u0643\u0644\u0641\u0629 \u0648\u0627\u0644\u0623\u062f\u0627\u0621\u060c \u064a\u0642\u062f\u0645 \u0627\u0644\u0633\u0648\u0642 \u0637\u064a\u0641\u064b\u0627 \u0648\u0627\u0633\u0639\u064b\u0627. \u062a\u0639\u0637\u064a \u0627\u0644\u0635\u0645\u0627\u0645\u0627\u062a \u0627\u0644\u062b\u0646\u0627\u0626\u064a\u0629 \u0639\u0627\u0644\u064a\u0629 \u0627\u0644\u062d\u062c\u0645 \u0644\u0644\u0645\u0633\u062a\u0647\u0644\u0643\u064a\u0646 (\u0627\u0644\u0645\u0633\u062a\u062e\u062f\u0645\u0629 \u0641\u064a \u0627\u0644\u0645\u0624\u0634\u0631\u0627\u062a \u0623\u0648 \u0627\u0644\u0645\u0627\u0633\u062d\u0627\u062a \u0627\u0644\u0636\u0648\u0626\u064a\u0629) \u0627\u0644\u0623\u0648\u0644\u0648\u064a\u0629 \u0644\u0644\u062a\u0643\u0644\u0641\u0629 \u0639\u0644\u0649 \u0627\u0644\u0646\u0642\u0627\u0621 \u0627\u0644\u0637\u064a\u0641\u064a \u0648 MTTF (\u0645\u062a\u0648\u0633\u0637 \u0627\u0644\u0648\u0642\u062a \u062d\u062a\u0649 \u0627\u0644\u0641\u0634\u0644). \u0648\u0639\u0644\u0649 \u0627\u0644\u0639\u0643\u0633 \u0645\u0646 \u0630\u0644\u0643\u060c \u0641\u0625\u0646 \u0627\u0644\u062b\u0646\u0627\u0626\u064a\u0627\u062a \u0627\u0644\u0635\u0646\u0627\u0639\u064a\u0629 \u0648\u0627\u0644\u0637\u0628\u064a\u0629 \u0644\u064a\u0632\u0631 \u0627\u0644\u0635\u0645\u0627\u0645 \u0627\u0644\u062b\u0646\u0627\u0626\u064a<\/strong> are subjected to rigorous “burn-in” testing.<\/p>\n\n\n\n

Burn-in testing involves running the diodes at elevated temperatures and currents for 48 to 96 hours. This process accelerates the failure of “infant” units with latent crystal defects. Only the survivors are shipped to the customer. This level of quality control (QC) is what separates a $5 component from a $500 precision instrument.<\/p>\n\n\n\n

\u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u0627\u0644\u0641\u0646\u064a\u0629: \u0645\u0642\u0627\u0631\u0646\u0629 \u0623\u062f\u0627\u0621 \u0645\u0648\u0627\u062f \u0623\u0634\u0628\u0627\u0647 \u0627\u0644\u0645\u0648\u0635\u0644\u0627\u062a<\/h3>\n\n\n\n

\u064a\u0648\u062c\u0632 \u0627\u0644\u062c\u062f\u0648\u0644 \u0627\u0644\u062a\u0627\u0644\u064a \u0627\u0644\u062e\u0635\u0627\u0626\u0635 \u0627\u0644\u062a\u0642\u0646\u064a\u0629 \u0644\u0644\u0645\u0648\u0627\u062f \u0627\u0644\u0623\u0648\u0644\u064a\u0629 \u0627\u0644\u0645\u0633\u062a\u062e\u062f\u0645\u0629 \u0641\u064a \u062f\u064a\u0648\u062f \u0644\u064a\u0632\u0631<\/strong> \u0627\u0644\u062a\u0635\u0646\u064a\u0639. \u062a\u0624\u062b\u0631 \u0647\u0630\u0647 \u0627\u0644\u0645\u0639\u0644\u0645\u0627\u062a \u0628\u0634\u0643\u0644 \u0645\u0628\u0627\u0634\u0631 \u0639\u0644\u0649 \u0646\u0637\u0627\u0642 \u0627\u0644\u062a\u0637\u0628\u064a\u0642 \u0648\u062a\u0639\u0642\u064a\u062f \u0639\u0645\u0644\u064a\u0629 \u0627\u0644\u062a\u0635\u0646\u064a\u0639.<\/p>\n\n\n\n

\u0646\u0638\u0627\u0645 \u0627\u0644\u0645\u0648\u0627\u062f<\/strong><\/td>\u0646\u0637\u0627\u0642 \u0627\u0644\u0637\u0648\u0644 \u0627\u0644\u0645\u0648\u062c\u064a (\u0646\u0627\u0646\u0648\u0645\u062a\u0631)<\/strong><\/td>\u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a \u0627\u0644\u0634\u0627\u0626\u0639\u0629<\/strong><\/td>Thermal Conductivity (W\/m\u00b7K)<\/strong><\/td>\u0643\u0641\u0627\u0621\u0629 \u0627\u0644\u0642\u0627\u0628\u0633 \u0627\u0644\u062d\u0627\u0626\u0637\u064a \u0627\u0644\u0646\u0645\u0648\u0630\u062c\u064a<\/strong><\/td><\/tr><\/thead>
InGaN\/GaN<\/strong><\/td>375 \u2013 520<\/td>\u0645\u0636\u0627\u0646 \u062d\u064a\u0648\u064a\u060c \u0625\u0633\u0642\u0627\u0637 RGB<\/td>130 – 200<\/td>20% – 30%<\/td><\/tr>
AlGaInP<\/strong><\/td>630 \u2013 690<\/td>\u0627\u0644\u0639\u0644\u0627\u062c \u0627\u0644\u0637\u0628\u064a\u060c \u0627\u0644\u062a\u0633\u0648\u064a\u0629 \u0627\u0644\u0637\u0628\u064a\u0629<\/td>45 – 60<\/td>30% – 40%<\/td><\/tr>
AlGaAs\/GaAs<\/strong><\/td>780 \u2013 850<\/td>\u0636\u062e \u0627\u0644\u0623\u0644\u064a\u0627\u0641\u060c \u0648\u0625\u0632\u0627\u0644\u0629 \u0627\u0644\u0634\u0639\u0631<\/td>44 – 55<\/td>50% – 60%<\/td><\/tr>
InGaAsP\/InP<\/strong><\/td>1300 \u2013 1650<\/td>\u0627\u0644\u0627\u062a\u0635\u0627\u0644\u0627\u062a \u0627\u0644\u0633\u0644\u0643\u064a\u0629 \u0648\u0627\u0644\u0644\u0627\u0633\u0644\u0643\u064a\u0629\u060c \u0644\u064a\u062f\u0627\u0631<\/td>68 – 75<\/td>30% – 45%<\/td><\/tr>
GaInAsSb<\/strong><\/td>2000 \u2013 3000<\/td>\u0627\u0633\u062a\u0634\u0639\u0627\u0631 \u0627\u0644\u063a\u0627\u0632\u0627\u062a\u060c \u062a\u062f\u0627\u0628\u064a\u0631 \u0645\u0636\u0627\u062f\u0629 \u0644\u0644\u0623\u0634\u0639\u0629 \u062a\u062d\u062a \u0627\u0644\u062d\u0645\u0631\u0627\u0621 \u0630\u0627\u062a \u0627\u0644\u0623\u0634\u0639\u0629 \u062a\u062d\u062a \u0627\u0644\u062d\u0645\u0631\u0627\u0621 \u0645\u062a\u0648\u0633\u0637\u0629 \u0627\u0644\u0645\u062f\u0649<\/td>20 – 30<\/td>10% – 20%<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\u062f\u0631\u0627\u0633\u0629 \u062d\u0627\u0644\u0629: \u0627\u0642\u062a\u0631\u0627\u0646 \u0627\u0644\u0623\u0644\u064a\u0627\u0641 \u0639\u0627\u0644\u064a\u0629 \u0627\u0644\u0637\u0627\u0642\u0629 \u0644\u0644\u0623\u0646\u0638\u0645\u0629 \u0627\u0644\u062c\u0631\u0627\u062d\u064a\u0629 \u0627\u0644\u0628\u064a\u0637\u0631\u064a\u0629<\/h3>\n\n\n\n

\u062e\u0644\u0641\u064a\u0629 \u0627\u0644\u0639\u0645\u064a\u0644:<\/p>\n\n\n\n

\u0637\u0644\u0628\u062a \u0625\u062d\u062f\u0649 \u0627\u0644\u0634\u0631\u0643\u0627\u062a \u0627\u0644\u0623\u0648\u0631\u0648\u0628\u064a\u0629 \u0627\u0644\u0645\u0635\u0646\u0639\u0629 \u0644\u0644\u0645\u0639\u062f\u0627\u062a \u0627\u0644\u062c\u0631\u0627\u062d\u064a\u0629 \u0627\u0644\u0628\u064a\u0637\u0631\u064a\u0629 \u0648\u062d\u062f\u0629 \u0644\u064a\u0632\u0631 \u062f\u064a\u0648\u062f \u0645\u062a\u0639\u062f\u062f\u0629 \u0627\u0644\u0623\u0637\u0648\u0627\u0644 \u0627\u0644\u0645\u0648\u062c\u064a\u0629 \u0644\u0648\u062d\u062f\u0629 \u062c\u0631\u0627\u062d\u064a\u0629 \u0645\u062d\u0645\u0648\u0644\u0629. \u0648\u0643\u0627\u0646 \u0627\u0644\u062c\u0647\u0627\u0632 \u0628\u062d\u0627\u062c\u0629 \u0625\u0644\u0649 \u0627\u0644\u062c\u0645\u0639 \u0628\u064a\u0646 808 \u0646\u0627\u0646\u0648\u0645\u062a\u0631 (\u0644\u0627\u062e\u062a\u0631\u0627\u0642 \u0627\u0644\u0623\u0646\u0633\u062c\u0629 \u0627\u0644\u0639\u0645\u064a\u0642\u0629) \u0648980 \u0646\u0627\u0646\u0648\u0645\u062a\u0631 (\u0644\u0627\u0645\u062a\u0635\u0627\u0635 \u0627\u0644\u0645\u0627\u0621\/\u0625\u0631\u0648\u0627\u0621 \u0627\u0644\u0645\u0627\u0621).<\/p>\n\n\n\n

\u0627\u0644\u062a\u062d\u062f\u064a\u0627\u062a \u0627\u0644\u062a\u0642\u0646\u064a\u0629:<\/p>\n\n\n\n

The primary challenge was the thermal footprint. The portable unit had limited active cooling capacity. The client had previously used lower-priced diodes that suffered from “wavelength drift,” which reduced the surgical efficacy during prolonged procedures.<\/p>\n\n\n\n

\u0627\u0644\u0645\u0639\u0644\u0645\u0627\u062a \u0648\u0627\u0644\u0625\u0639\u062f\u0627\u062f\u0627\u062a \u0627\u0644\u0641\u0646\u064a\u0629:<\/strong><\/p>\n\n\n\n