GK Semi

Laser Products

780-50W-QCW

780 nm High-Power Laser Bar

High efficiency and stability · Precision photonics | Powering quantum and industrial pumping.

780-50W-QCW product photograph
Emission wavelength780 nm
Output power50 W
QCW
3 nm
Pulse width / duty cycle30 ms / 30%

01 / Product introduction

Product introduction

GK Semicoductor's 780 nm high-power laser bar uses a conduction-cooled single-bar design and advanced epitaxial processes to deliver high efficiency, long service life and high reliability. The product supports both continuous-wave (CW) and quasi-continuous-wave (QCW) operation, with strong performance in quantum research and industrial equipment applications.

02 / Core application scenarios

Core application scenarios

01
Quantum information and precision measurementPumping sources for rubidium atomic clocks, cold-atom interferometric gravimeters and SEOP hyperpolarized-lung MRI.
02
Industrial and laser equipmentPump sources for solid-state and fiber lasers, precision materials processing and high-power laser equipment.

03 / Core advantages

Core advantages

01
High efficiency and reliabilityA conduction-cooled structure and optimized epitaxial design support high electro-optical conversion efficiency, stable operation and long service life.
02
Precise beam controlScientific emitter and fill-factor configuration keeps spectral width within 3 nm and supports efficient downstream beam shaping.
03
Full-chain IDM assuranceGK Semicoductor's in-house compound-semiconductor platform provides controlled quality and supports customized expansion.

04 / Core technical specifications

Core technical specifications

Output power
50 W
Emission wavelength
780 nm
Spectral width / temperature drift
3 nm / 0.3 nm/°C
Slope efficiency
1.0 W/A
Operating current / voltage
50 A / 2 V
Pulse width / duty cycle
30 ms / 30%
Emitters / fill factor
19 / 30%
Cavity length / thickness
1000 μm / 125 μm
Recommended operating temperature
25 °C

04 / Project integration

Integration essentials

Drive
50 A / 2 V
Thermal control
10–30 °C
Package
Conduction-cooled bar
Output interface
Free-space / package dependent