G520-800 Fiber Laser Module

Category: Fiber modules

G520-800 is the fiber-coupled 800 mW green laser module with a wavelength of 520 nm. The device allows attaching the 100 um 0.22 NA fiber.



Payment logo

Availability: Lead Time: 4 weeks


SKU: 001755


  • $399.00 In stock

    Easy to use accessory for mounting and adjusting the lens in optical systems with SMA 905  fiber. Fiber collimator allows to collimate or focus the beam, it can be also used as fiber coupler.

    PCS Add to cart
    In stock

Technical Data

Capability for Cooling or Heating
TEC cooled, fan
Compliance Voltage
85 - 264 VAC (47 - 63 Hz)
Design Wavelength
520 nm
Max. Modulation Frequency
100 kHz
Modulation Input Voltage Range
0 - 5 V
Modulation Type
Analog / TTL
Operating Temp. Range
+10 to +30 °C
Power @ 20°C 520nm Laser
800 mW
Estimated lifetime
5000 h

Product Description

About the G520-800 Fiber Laser Module

Fiber-coupled 800 mW green laser module with a wavelength of 520 nm. The device was designed to use with 100 um 0.22 NA fiber.

Fiber is not included.

Microcontroller driving the laser module is responsible both for the soft start of the laser diode and the regulation of temperature by using a thermocouple. In addition, in the event when adequate heat dissipation of the module is not ensured, the system protects the diode from overheating, and when the temperature of the diode exceeds 40 degrees Celsius, it prevents further current flow through the diode and goes into the alarm mode.

With a separate analog part of the laser diode power supply, the laser is able to modulate the beam in accordance with the analog input signal (0 - 5 V) even at the frequency of up to 100 kHz.

This device contains the power supply unit. PSU and driver unit are hidden together in the casing. Due to this solution laser module can be supplied from the AC socket. Modulation signal can be connected by the user using the BNC connector. It is also a potentiometer which enables to adjust the amplitude of input modulation signal and the power on/off switch.

The diode along with the entire optical system is mounted in a housing with radiator which is cooled by the fan. Thanks to that, the module can operate without any additional cooling.


This module has a thermal protection system which protects laser diode from overheating.

The analog input is protected by a 5V1 Zener diode on occasion there appears the voltage higher than 5 V. Despite everything, this input should not be used with higher voltages.

The output of the driver is protected by Schottky diode which doesn't allow the reverse voltage to appear.

FIBER core diameter 100 um


Write a review