Vertical cavity surface emitting laser and atomic oscillator

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United States of America Patent

PATENT NO 9748739
SERIAL NO

15093990

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Abstract

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A vertical cavity surface emitting laser includes: a substrate; a first mirror layer; an active layer; a second mirror layer; a current constriction layer; a first area connected to the first mirror layer and including a plurality of oxide layers; and a second area connected to the second mirror layer and including a plurality of oxide layers. The first mirror layer, the active layer, the second mirror layer, the current constriction layer, the first area, and the second area configure a laminated body. The laminated body includes a first portion, a second portion, and a third portion between the first portion and the second portion. When a width of the oxide area is W1 and a width of an upper surface of the first portion is W2, W2/W1≦3.3.

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Patent Owner(s)

Patent OwnerAddress
SEIKO EPSON CORPORATION4-1 NISHI-SHINJUKU 2-CHOME SHINJUKU-KU TOKYO

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kaneko, Tsuyoshi Shimosuwa, JP 103 555
Kurachi, Yuji Chino, JP 10 48
Nishida, Tetsuo Suwa, JP 82 370

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