1550nm Semiconductor Laser LDCT1550-120 LDCT-1550-120
LDBF-1550 is a DFB semiconductor laser introduced by the company with an eye-safe wavelength, high peak power and high pulse energy. It integrates a TEC temperature controller and supports ns-level laser pulse widths. Its compact, small design and wide operating temperature range suit integration into automotive lidar, airborne 3D laser scanning and similar systems.
Specification Snapshot
Threshold Current I_th [Performance Specifications ;T_op=40℃]
typical:13 mA; max:19 mA
Forward Voltage V_f [Performance Specifications ;I_f=200mA;TEC=40℃]
typical:1.9 V
Center Wavelength λ_c [Performance Specifications ;I_f=200mA;TEC=40℃]
min:1549 nm; max:1553 nm
Side Mode Suppression Ratio SMSR [Performance Specifications ;I_f=50mA;TEC=40℃]
min:37 dB
Isolation ISO [Performance Specifications ;Tcase=-40~85℃]
min:23 dB; typical:35 dB
Operating Temperature Tcase [Performance Specifications; pulsed drive]
min:-40 ℃; max:85 ℃
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Overview
LDBF-1550 is a DFB semiconductor laser introduced by the company with an eye-safe wavelength, high peak power and high pulse energy. It integrates a TEC temperature controller and supports ns-level laser pulse widths. Its compact, small design and wide operating temperature range suit integration into automotive lidar, airborne 3D laser scanning and similar systems.
Specifications
| Parameter | Value |
|---|---|
| Threshold Current I_th [Performance Specifications ;T_op=40℃] | typical:13 mA; max:19 mA |
| Forward Voltage V_f [Performance Specifications ;I_f=200mA;TEC=40℃] | typical:1.9 V |
| Pulsed Fiber Output Power P_out [Performance Specifications ;I_op=800mA;PW=10μs;duty=1%] | typical:120 mW |
| DC Fiber Output Power P_f [Performance Specifications ;I_f=200mA;TEC=40℃] | min:40 mW; typical:45 mW |
| Center Wavelength λ_c [Performance Specifications ;I_f=200mA;TEC=40℃] | min:1549 nm; max:1553 nm |
| Side Mode Suppression Ratio SMSR [Performance Specifications ;I_f=50mA;TEC=40℃] | min:37 dB |
| Monitor Current I_m [Performance Specifications ;I_f=I_th+50mA;TEC=40℃] | min:500 μA; max:1000 μA |
| PD Dark Current I_d [Performance Specifications ;I_op=0mA;V_bias=-5.0V] | max:100 |
| Isolation ISO [Performance Specifications ;Tcase=-40~85℃] | min:23 dB; typical:35 dB |
| Operating Temperature Tcase [Performance Specifications; pulsed drive] | min:-40 ℃; max:85 ℃ |
| LD Operating Current I_f [Rated Limits; including continuation table] | 400 mA |
| LD Reverse Voltage V_r [Rated Limits; including continuation table] | 2 V |
| PD Operating Current I_m [Rated Limits; including continuation table] | 2 mA |
| PD Reverse Voltage V_m [Rated Limits; including continuation table] | 10 V |
| Operating Temperature T_op [Rated Limits; including continuation table] | -40~85 °C |
| Storage Temperature T_stg [Rated Limits; including continuation table] | -40~85 °C |
| TEC Voltage V_tec [Rated Limits; including continuation table] | 1 V |
| TEC Current I_tec [Rated Limits; including continuation table] | 1.2 A |
| Soldering temperature T_sld [Rated Limits; including continuation table] | 260 °C |
| Welding time [Rated Limits; including continuation table] | 5 S |
Applications
Automotive lidar; laser ranging; instruments and meters
Key Features
Built-in isolator and backlight monitor; single-mode pigtail package
Datasheet
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Supplier Information
Lingtu Technology is a national high-tech enterprise founded in 2017, possessing full-stack product R&D capabilities from chips to devices, modules, sensors, and industry solutions. Headquartered in Wuhan Optics Valley, with manufacturing in Yichang and sales offices in Shanghai, Shenzhen, Suzhou, etc., the company focuses on optoelectronic technology and sensors, providing comprehensive services from device packaging, module assembly to system design and solutions. With over 20 years of experience in complex optoelectronic sensing system R&D, large-scale optical communication manufacturing, and precision optical device assembly, its products are widely used in smart home, smart city, intelligent surveying, and embodied intelligence.
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