Related Experiment Video
Updated: Aug 15, 2026
08:48
Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy
Published on: November 22, 2019
Phase-locked antimonide diode laser array with Talbot cavity
Optics Express
|August 14, 2026
Summary
Researchers developed a new antimonide phase-locked laser array using a Talbot cavity. This laser array achieves high power output while maintaining excellent beam quality, paving the way for brighter laser sources.
Area of Science:
- Optics and Photonics
- Semiconductor Lasers
- Laser Engineering
Background:
- Power scaling and maintaining beam quality in laser arrays is a significant challenge.
- Diffraction-coupling schemes offer potential for improved laser array performance.
Purpose of the Study:
- To demonstrate an antimonide phase-locked laser array integrated with a Talbot cavity.
- To achieve high power output with high beam quality from a laser array.
Main Methods:
- Design and fabrication of a seven-element phase-locked laser array.
- Integration with a Talbot cavity utilizing a diffraction-coupling scheme.
- Characterization of power output and beam divergence under continuous-wave (CW) operation.
Main Results:
- Maximum output power of 812 mW achieved at 288 K.
- Near diffraction-limited (D.L.) beam divergence of 1.86° measured.
- Stable in-phase mode operation confirmed across the operating current range, indicating robust supermode selection.
Conclusions:
- The demonstrated antimonide phase-locked laser array with a Talbot cavity shows potential for high-brightness laser sources.
- Effective supermode control, thermal management, and fabrication tolerance contribute to the array's performance.
- This work addresses key challenges in laser array power scaling and beam quality maintenance.
