Spot-size Converter Integrated Laser Diodes (SS-LDs)

Yoshio ITAYA; Yuichi TOHMORI; Hiroshi OKAMOTO; Osamu MITOMI; Masato WADA; Kenji KAWANO; Hideki FUKANO; Kiyoyuki YOKOYAMA; Yasumasa SUZAKI; Minoru OKAMOTO; Yasuhiro KONDO; Isamu KOTAKA; Mitsuo YAMAMOTO; Masaki KOHTOKU; Yoshiaki KADOTA; Kenji KISHI; Yoshihisa SAKAI; Hiromi OOHASHI; Masashi NAKAO

Spot-size Converter Integrated Laser Diodes (SS-LDs)

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We studied three types of lasers emitting narrow beam divergence of output light: 1) a spot-size converter integrated laser diodes (SS-LDs) with a vertically tapered waveguide, 2) one with a laterally tapered waveguide, and 3) one consisting of a small cross section of active region. We compared them with regard to their performance in coupling efficiency to a cleaved single mode fiber, threshold current, output power, and reliability. Both the spot-size converted integrated lasers with vertically and laterally tapered waveguide repeatedly provided low threshold currents of as low as 6 mA and low coupling loss to the fiber of 1.2 to 2.5 dB in two inch wafer processes. As a result of the aging test, the SS-lasers were predicted to have the same degradation rate as a conventional buried heterostructure laser. The laser having a small cross section of active layer also has low coupling loss and high efficiency up to 85.

Publication: IEICE TRANSACTIONS on Electronics Vol.E80-C No.1 pp.30-40

Publication Date: 1997/01/25

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Type of Manuscript: Special Section PAPER (Special Issue on Devices, Packaging Technology, and Subsystems for the Optical Access Network)

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Yoshio ITAYA, Yuichi TOHMORI, Hiroshi OKAMOTO, Osamu MITOMI, Masato WADA, Kenji KAWANO, Hideki FUKANO, Kiyoyuki YOKOYAMA, Yasumasa SUZAKI, Minoru OKAMOTO, Yasuhiro KONDO, Isamu KOTAKA, Mitsuo YAMAMOTO, Masaki KOHTOKU, Yoshiaki KADOTA, Kenji KISHI, Yoshihisa SAKAI, Hiromi OOHASHI, Masashi NAKAO, "Spot-size Converter Integrated Laser Diodes (SS-LDs)" in IEICE TRANSACTIONS on Electronics, vol. E80-C, no. 1, pp. 30-40, January 1997, doi: .
Abstract: We studied three types of lasers emitting narrow beam divergence of output light: 1) a spot-size converter integrated laser diodes (SS-LDs) with a vertically tapered waveguide, 2) one with a laterally tapered waveguide, and 3) one consisting of a small cross section of active region. We compared them with regard to their performance in coupling efficiency to a cleaved single mode fiber, threshold current, output power, and reliability. Both the spot-size converted integrated lasers with vertically and laterally tapered waveguide repeatedly provided low threshold currents of as low as 6 mA and low coupling loss to the fiber of 1.2 to 2.5 dB in two inch wafer processes. As a result of the aging test, the SS-lasers were predicted to have the same degradation rate as a conventional buried heterostructure laser. The laser having a small cross section of active layer also has low coupling loss and high efficiency up to 85.
URL: https://globals.ieice.org/en_transactions/electronics/10.1587/e80-c_1_30/_p

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@ARTICLE{e80-c_1_30,
author={Yoshio ITAYA, Yuichi TOHMORI, Hiroshi OKAMOTO, Osamu MITOMI, Masato WADA, Kenji KAWANO, Hideki FUKANO, Kiyoyuki YOKOYAMA, Yasumasa SUZAKI, Minoru OKAMOTO, Yasuhiro KONDO, Isamu KOTAKA, Mitsuo YAMAMOTO, Masaki KOHTOKU, Yoshiaki KADOTA, Kenji KISHI, Yoshihisa SAKAI, Hiromi OOHASHI, Masashi NAKAO, },
journal={IEICE TRANSACTIONS on Electronics},
title={Spot-size Converter Integrated Laser Diodes (SS-LDs)},
year={1997},
volume={E80-C},
number={1},
pages={30-40},
abstract={We studied three types of lasers emitting narrow beam divergence of output light: 1) a spot-size converter integrated laser diodes (SS-LDs) with a vertically tapered waveguide, 2) one with a laterally tapered waveguide, and 3) one consisting of a small cross section of active region. We compared them with regard to their performance in coupling efficiency to a cleaved single mode fiber, threshold current, output power, and reliability. Both the spot-size converted integrated lasers with vertically and laterally tapered waveguide repeatedly provided low threshold currents of as low as 6 mA and low coupling loss to the fiber of 1.2 to 2.5 dB in two inch wafer processes. As a result of the aging test, the SS-lasers were predicted to have the same degradation rate as a conventional buried heterostructure laser. The laser having a small cross section of active layer also has low coupling loss and high efficiency up to 85.},
keywords={},
doi={},
ISSN={},
month={January},}

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TY - JOUR
TI - Spot-size Converter Integrated Laser Diodes (SS-LDs)
T2 - IEICE TRANSACTIONS on Electronics
SP - 30
EP - 40
AU - Yoshio ITAYA
AU - Yuichi TOHMORI
AU - Hiroshi OKAMOTO
AU - Osamu MITOMI
AU - Masato WADA
AU - Kenji KAWANO
AU - Hideki FUKANO
AU - Kiyoyuki YOKOYAMA
AU - Yasumasa SUZAKI
AU - Minoru OKAMOTO
AU - Yasuhiro KONDO
AU - Isamu KOTAKA
AU - Mitsuo YAMAMOTO
AU - Masaki KOHTOKU
AU - Yoshiaki KADOTA
AU - Kenji KISHI
AU - Yoshihisa SAKAI
AU - Hiromi OOHASHI
AU - Masashi NAKAO
PY - 1997
DO -
JO - IEICE TRANSACTIONS on Electronics
SN -
VL - E80-C
IS - 1
JA - IEICE TRANSACTIONS on Electronics
Y1 - January 1997
AB - We studied three types of lasers emitting narrow beam divergence of output light: 1) a spot-size converter integrated laser diodes (SS-LDs) with a vertically tapered waveguide, 2) one with a laterally tapered waveguide, and 3) one consisting of a small cross section of active region. We compared them with regard to their performance in coupling efficiency to a cleaved single mode fiber, threshold current, output power, and reliability. Both the spot-size converted integrated lasers with vertically and laterally tapered waveguide repeatedly provided low threshold currents of as low as 6 mA and low coupling loss to the fiber of 1.2 to 2.5 dB in two inch wafer processes. As a result of the aging test, the SS-lasers were predicted to have the same degradation rate as a conventional buried heterostructure laser. The laser having a small cross section of active layer also has low coupling loss and high efficiency up to 85.
ER -