520nm 50W Fiber Coupled Diode Laser

Hangzhou Brandnew Technology Co., Ltd. is one of China's leading manufacturers and premier suppliers of advanced 520nm 50w fiber coupled diode laser. Operating a state-of-the-art factory, we specialize in the entire production spectrum—from high-performance chips, TO/F/C Mounts, COS, and MCC bars, to robust stacks and advanced fiber-coupled solutions.

520nm 50W Fiber Coupled Diode Laser 

 

 

Features:

• 50W high-power stable CW output, 520nm green wavelength 
• 200μm core diameter, standard SMA905 fiber connector
• High electro-optical efficiency, excellent beam quality

 

Applications:

• Pumping for solid-state lasers, tunable lasers, OPO, Raman lasers and fiber amplifiers.
• Plastic welding, precision soldering, laser heating and micro-cladding; ideal for transparent material modification.
• Applied to high-brightness laser projection, small-size display modules and advanced optical display systems.
• Used for fluorescence excitation, biological imaging, detection and long-distance optical sensing applications.

Date sheet

Item No.: FC520DZ50

Item Name: 520nm 50W Fiber Coupled Diode Laser

Design:

This 520nm 50W conduction cooled fiber coupled diode laser adopts industrial multi-pin design, with specially reserved two pins compatible with NTC thermistor to achieve accurate real-time temperature monitoring, effectively avoiding wavelength drift and power attenuation caused by temperature change. It integrates 520nm green light output, high-efficiency fiber coupling conduction cooling structure, featuring high electro-optical conversion efficiency, excellent beam stability and strong environmental adaptability. With reliable temperature feedback and protection capability, it is highly suitable for high-reflective metal precision processing, medical aesthetic equipment, high-brightness laser lighting and scientific research customized laser systems, providing stable, safe and easy-integrated high-power green laser source solution for industrial and professional optical applications.

Instructions for use of drive products：

I. Definition of Interface 1 – Large 4PIN Green Terminal

1. + (Positive input voltage, positive terminal of the switching power supply. If the switching power supply voltage is 24V, adjust the power supply to its minimum setting first).

2. LD+ (LD output positive terminal , Pin 1 of the DB9 connector for the 15W blue laser).

3. LD- (LD output negative terminal , Pin 2 of the DB9 connector for the 15W blue laser).

4. GND (Negative input voltage, negative terminal of the switching power supply).

II.Definition of Interface 2 – Small 4PIN Green Terminal

1. SIG- (Analog signal input negative).

2. SIG+ (Analog signal input positive).

0~10V analog input corresponds to 0~3.3A current output.

3. + (Positive terminal of the input signal).
This signal can be a TTL signal, PWM signal, or high-level signal with a response voltage greater than 3.3V.

4. - (Negative terminal of the input signal).

III. Definition of Interface 3 – Small 4PIN Green Terminal

GND (Ground for voltage feedback signal).

V (Positive terminal of voltage feedback signal).

I (Positive terminal of current feedback signal).

GND (Ground for current feedback signal).

IV. Functional Description

1. The ± terminals of Interface 2 can accept TTL modulation signals, DC voltage signals, sine wave signals, etc.

2. The analog input signal of Interface 2 is a 0–10V signal, corresponding to 0–100% current output.

3. Test point: Measure at I+ using a multimeter.
A reading of 1.2V corresponds to 12A, enabling precise control of the LD current.

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