HY-DFB Series DFB Laser
The HY-DFB series uses high-quality multiple quantum wells (MQW) and distributed feedback, with an integrated thermistor and TEC control for stable single-frequency output. Linewidth options include ≤50kHz, ≤100kHz, ≤200kHz, and ≤500kHz; side-mode suppression reaches 40dB. Stable construction, mature processing, and volume production use a 14-pin butterfly package, with output insensitive to vibration and temperature changes for demanding environments. S-type Pin Definitions (original table)：1=Thermistor/Thermistor；2=Thermistor/Thermistor；3=Laser negative/LD-；4=PD negative/PD Anode；5=PD positive/PD Cathode；6=TEC positive/TEC+；7=TEC negative/TEC-；8=Ground/Ground；9=Ground/Ground；10=Not connected/Not connected；11=Laser positive/LD+；12=Not connected/Not connected；13=Laser positive/LD+；14=Not connected/Not connected。 N-type Pin Definitions (original table)：1=TEC positive/TEC+；2=Thermistor/Thermistor；3=PD negative/PD Anode；4=PD positive/PD Cathoder；5=Thermistor/Thermistor；6=Not connected/Not connected；7=Not connected/Not connected；8=Not connected/Not connected；9=Not connected/Not connected；10=Laser positive/LD+；11=Laser negative/LD-；12=Not connected/Not connected；13=Ground/Ground；14=TEC negative/TEC-。
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Overview
Specifications
| Parameter | Value |
|---|---|
| Center Wavelength λₚ [CW, 10mW; full C-band coverage, optional ITU wavelengths, specifications customizable] | typical ：1550 |
| Spectral Linewidth Δλ [CW, 10mW; Lorentzian linewidth (3dB), measured by delayed self-heterodyne] | typical ：100； max ：500 |
| Output Optical Power P_o [CW] | typical ：10； max ：40 |
| Optical Side-Mode Suppression Ratio SMSR [CW, 10mW] | min ：35； typical ：40 |
| Polarization Extinction Ratio PER | min ：17； typical ：20 |
| Operating Current I_op [CW, 10mW] | max ：400 |
| Threshold Current I_th | typical ：15； max ：25 |
| Forward Voltage V_F | max ：3 |
| Wavelength Temperature Coefficient Δλ/ΔT | typical ：0.08； max ：0.12 |
| Output Isolation ISO [CW, 10mW] | min ：35 |
| Operating Temperature T_a [Absolute Maximum Ratings] | min ：-20； max ：60 |
| Storage Temperature T_stg [Absolute Maximum Ratings] | min ：-40； max ：85 |
| Reverse Voltage V_r [Absolute Maximum Ratings] | max ：2 |
| Operating Current I_op [Absolute Maximum Ratings] | max ：500 |
| TEC Operating Voltage V_TEC [Absolute Maximum Ratings] | max ：2.6 |
| TEC Operating Current I_TEC [Absolute Maximum Ratings] | max ：1.5 |
Applications
Key Features
Datasheet
Supplier Information
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