1550nm Semiconductor Laser LDCT1550-10 LDCT-1550-10
LDCT-1550-10 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_c=25℃]
typical:7 mA; max:12 mA
Threshold Current I_th [Performance Specifications ;T_c=85℃]
typical:20 mA; max:25 mA
Center Wavelength λ_c [Performance Specifications ;I_op=I_th+30mA;T_c=25℃]
min:1548 nm; typical:1550 nm; max:1551.5 nm
Side Mode Suppression Ratio SMSR [Performance Specifications ;I_op=I_th+30mA;T_c=25℃]
min:35 dB
Storage Temperature [Rated Limits; including continuation table in the following section]
-40~100 °C
Operating Temperature [Rated Limits; including continuation table in the following section]
-40~85 °C
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Overview
LDCT-1550-10 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 |
|---|---|
| Laser Operating Temperature T_op [Performance Specifications ;T_case=-40~+85℃] | min:-40 °C; max:85 °C |
| Threshold Current I_th [Performance Specifications ;T_c=25℃] | typical:7 mA; max:12 mA |
| Threshold Current I_th [Performance Specifications ;T_c=85℃] | typical:20 mA; max:25 mA |
| Laser Forward Voltage V_f [Performance Specifications ;I_op=I_th+30mA;T_c=25℃] | typical:1.2 V; max:1.5 V |
| Laser Forward Current I_f [Performance Specifications ;CW;T_c=25℃] | max:100 mA |
| Rated Power P_f [Performance Specifications ;I_op=100mA;T_c=25℃] | min:12 mW |
| Rated Power P_f [Performance Specifications ;I_op=100mA;T_c=85℃] | min:11 mW |
| Center Wavelength λ_c [Performance Specifications ;I_op=I_th+30mA;T_c=25℃] | min:1548 nm; typical:1550 nm; max:1551.5 nm |
| Side Mode Suppression Ratio SMSR [Performance Specifications ;I_op=I_th+30mA;T_c=25℃] | min:35 dB |
| Detector Current I_m [Performance Specifications ;I_op=I_th+30mA;T_c=25℃] | min:100 μA; max:1000 μA |
| Detector Dark Current I_d [Performance Specifications ;I_op=0mA;V_bias=-5.0V] | max:100 |
| Bandwidth (3dB) BW [Performance Specifications ;I_op=I_th+30mA;T_c=25℃] | min:10 GHz |
| Thermistor R [Performance Specifications ;T_op=25℃] | min:9.9 kΩ; typical:10 kΩ; max:10.1 kΩ |
| B Value B_25/50 [Performance Specifications ;B=[ln(R₁)-ln(R₂)]/[1/T₁-1/T₂]] | min:3890.7 K; typical:3930 K; max:3969.3 K |
| Laser Diode Reverse Voltage V_f [Rated Limits; including continuation table in the following section] | 2 V |
| Laser Diode Forward Current I_f [Rated Limits; including continuation table in the following section] | 120 mA |
| DC Power P_o [Rated Limits; including continuation table in the following section] | 20 mW |
| Detector Forward Current I_m [Rated Limits; including continuation table in the following section] | 2 mA |
| Detector Reverse Voltage V_m [Rated Limits; including continuation table in the following section] | 10 V |
| Storage Temperature [Rated Limits; including continuation table in the following section] | -40~100 °C |
| Operating Temperature [Rated Limits; including continuation table in the following section] | -40~85 °C |
| TEC Voltage [Rated Limits; including continuation table in the following section] | 1 V |
| TEC Current [Rated Limits; including continuation table in the following section] | 1.2 A |
| Lead soldering temperature [Rated Limits; including continuation table in the following section] | 260 °C |
| Lead soldering time [Rated Limits; including continuation table in the following section] | 5 S |
| Fiber Type [Fiber Connector Technical Table] | Corning ZBL fiber; custom fiber available |
| Tubing [Fiber Connector Technical Table] | 900um loose tubing |
| Fiber Length [Fiber Connector Technical Table] | >1 m |
| Fiber Color [Fiber Connector Technical Table] | White |
| Connector Type [Fiber Connector Technical Table] | FC/APC |
Applications
Automotive lidar; laser ranging; instruments and meters
Key Features
Built-in backlight monitor; FC/APC 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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