Share Email Print
cover

Proceedings Paper

Tapered laser diode with linearly effective-refractive-index variation waveguide
Author(s): Duchang Heo; Yun-Seok Kwak; Tae-kyung Kim; Young-Wook Choi
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

We investigated a novel design concept of index-guided tapered LDs with linearly effective-refractive-index variation to make a quality beam in 808 nm for intermediate power LDs between a few decades of mW to ~ W. In this concept, the tapered width at each position in the propagation direction varies linearly depending on change in effective-refractive-index not geometry. We use GaAsP/InGaP/InGaAlP quantum well LD structure of 808 nm and standard LD fabrication processes to test. To design a detail structure, we use the effective-refractive-index method and transfer matrix method. The tapered ridge LD with linear effective-refractive-index variation shows more stable in beam quality but needs more study to optimize the structure.

Paper Details

Date Published: 1 April 2015
PDF: 5 pages
Proc. SPIE 9348, High-Power Diode Laser Technology and Applications XIII, 934813 (1 April 2015); doi: 10.1117/12.2080439
Show Author Affiliations
Duchang Heo, Korea Electrotechnology Research Institute (Korea, Republic of)
Yun-Seok Kwak, QSI Co., Ltd. (Korea, Republic of)
Tae-kyung Kim, QSI Co., Ltd. (Korea, Republic of)
Young-Wook Choi, Korea Electrotechnology Research Institute (Korea, Republic of)


Published in SPIE Proceedings Vol. 9348:
High-Power Diode Laser Technology and Applications XIII
Mark S. Zediker, Editor(s)

© SPIE. Terms of Use
Back to Top