Design of red-emitting external cavity diode laser module for high-slope efficiency and narrow bandwidth

Jiyeon Park, Hong Joo Song, Hong Man Na, Jun Ho Lee, Ilgu Yun

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

A red-emitting external cavity diode laser (ECDL) module was designed to increase the slope efficiency and reduce the bandwidth by tilting the solitary laser diode (LD) 90 deg. This tilt resulted in parallel polarization, which yielded high-slope efficiency and also produced a favorable geometry that minimized the area of the back-focused beam, thereby facilitating selection of a specific wavelength. A ray-tracing simulator was used to optimize optical parameters such as the back focal length of the collimating lens, the cavity length, and the grating's groove density. Based on the optimized structure, an ECDL module package was designed for thermal control by using autodisk computer-aided design tool. The resulting module obtained high-slope efficiency and narrow-bandwidth emission of red light, making it suitable for potential application as a light source for a commercial three-dimensional holographic system. The module achieved the narrow bandwidth of 80 pm and the slope efficiency of 0.81 W/A, which compared favorably with the output power of 0.8 to 0.9 W/A of commercial solitary LDs.

Original languageEnglish
Article number096109
JournalOptical Engineering
Volume54
Issue number9
DOIs
Publication statusPublished - 2015 Sep 1

Fingerprint

Semiconductor lasers
modules
semiconductor lasers
slopes
bandwidth
Bandwidth
cavities
Ray tracing
computer aided design
ray tracing
grooves
simulators
Light sources
Lenses
Computer aided design
light sources
Simulators
lenses
gratings
Polarization

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Engineering(all)

Cite this

Park, Jiyeon ; Song, Hong Joo ; Na, Hong Man ; Lee, Jun Ho ; Yun, Ilgu. / Design of red-emitting external cavity diode laser module for high-slope efficiency and narrow bandwidth. In: Optical Engineering. 2015 ; Vol. 54, No. 9.
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Design of red-emitting external cavity diode laser module for high-slope efficiency and narrow bandwidth. / Park, Jiyeon; Song, Hong Joo; Na, Hong Man; Lee, Jun Ho; Yun, Ilgu.

In: Optical Engineering, Vol. 54, No. 9, 096109, 01.09.2015.

Research output: Contribution to journalArticle

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