Design and fabrication of high power single mode double-trench ridge waveguide laser

Shaoyang Tan; Teng Zhai; Wei Wang; Ruikang Zhang; Dan Lu; Chen Ji

doi:10.1117/12.2038638

7 March 2014 Design and fabrication of high power single mode double-trench ridge waveguide laser

Shaoyang Tan, Teng Zhai, Wei Wang, Ruikang Zhang, Dan Lu, Chen Ji

Proceedings Volume 8965, High-Power Diode Laser Technology and Applications XII; 89651B (2014) https://doi.org/10.1117/12.2038638
Event: SPIE LASE, 2014, San Francisco, California, United States

Abstract

A high power single-lateral-mode double-trench ridge waveguide semiconductor laser is reported. The laser has a compressively strained double quantum-well (DQW) and an GaAs/AlGaAs separate confinement structure. The ridge waveguide is defined by two trenches of finite width on either side of the ridge, which will result mode radiation towards outside of the trenches. The relationship between the leakage loss and the waveguide geometry of the each lateral mode is studied with effective index method. The relationship under different bias condition is evaluated. Based on the simulation, lasers with various trench width, trench depth and ridge width are fabricated and tested. With optimized geometry parameters, a laser of 1.5-mm cavity length with a maximum single-lateral-mode operation current of 550 mA is obtained. The threshold current and the slope efficiency of the laser is 30 mA and 0.72 W/A, respectively. The maximum single-lateral-mode power is up to 340 mW.

Citation Download Citation

Shaoyang Tan, Teng Zhai, Wei Wang, Ruikang Zhang, Dan Lu, and Chen Ji "Design and fabrication of high power single mode double-trench ridge waveguide laser", Proc. SPIE 8965, High-Power Diode Laser Technology and Applications XII, 89651B (7 March 2014); https://doi.org/10.1117/12.2038638

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available