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The Review of Laser Engineering
Article . 1989 . Peer-reviewed
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Optical properties of DBR-lasers.

Authors: TAKAHASHI, Mitsuo; YOSHIMURA, Manabu; MICHITSUJI, Yasunori; NAKANISHI, Hiromi; YAMAZOE, Yoshimitsu; SUGIMOTO, Tetsuo;

Optical properties of DBR-lasers.

Abstract

We have fabricated the InGaAsP/InP DBR-lasers with the wavelength range of 1.5μm, and investigated their optoelectronic properties. High sub-mode suppression ratios of exceeding 35 dB, and very narrow spectral linewidths less than 10 MHz were obtained. Wavelengthtuning was performed by an injection of tuning current in Bragg reflector region. The maximum continuous tuning range was 1.9 nm. In addition, the effects of anti-reflection (AR) coating on the lasing characteristics were investigated. The experimental results show that the AR-coating can improve the sub-mode suppression ratio by about 5 dB. The output power of the lasers with AR-coating are about 1.5 times larger than that of the lasers without AR-coating. These results agree well with theoretical calculations.

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Keywords

Single-mode yield, AR-coating, Tuning, DBR-laser

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
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