DFB laser provides pure ,single longitudinal mode and extremely stable wavelength source. This laser diode is fabricated with Multiple Quantum Well (MQW) for excellent reliability and stability. This MQW DFB laser features high output power, good Side Mode Suppression Ratio (SMSR) and a built-in thermoelectric cooler , thermistor ,and rear-faced monitor photodiode for external optical power control. Our factory can supply 1310nm DFB butterfly laser module 300mW

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