Patent · US Active

Optical modulator driver circuit and optical transmitter

US10243664B2 · kind B2 · utility

3Cited by

3References

13Claims

0Family size

Assignee

NIPPON TELEGRAPH AND TELEPHONE CORPORATION · JP

Inventors

Munehiko Nagatani · Musashino, JP
Hideyuki Nosaka · Yokohama, JP
Toshihiro Itoh · Ibaraki, JP
Koichi Murata · Tsuruga, JP
Hiroyuki Fukuyama · Musashino, JP
Takashi Saida · Atsugi, JP
Shin Kamei · Atsugi, JP
Hiroshi Yamazaki · Hachioji, JP
Nobuhiro Kikuchi · Moriya, JP
Hiroshi Koizumi · Yokohama, JP
Masafumi Nogawa · Atsugi, JP
Hiroaki Katsurai · Musashino, JP
Hiroyuki Uzawa · Musashino, JP
Tomoyoshi Kataoka · Tokyo, JP
Naoki Fujiwara · Tokyo, JP
Hiroto Kawakami · Tokyo, JP
Kengo Horikoshi · Yokosuka, JP
Yves Bouvier · Tokyo, JP
Mikio Yoneyama · Tokyo, JP
Shigeki Aisawa · Yokosuka, JP
Masahiro Suzuki · Inzai, JP

Key dates

Filing date	May 9, 2014
Grant date	Mar 26, 2019
Priority date	—
Expiry date	Jun 23, 2034

Classification

Technology area (CPC H)Electricity
CPC primaryH03F2203/45702
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

An optical modulator driver circuit (1) includes an amplifier (50, Q10, Q11, R10-R13), and a current amount adjustment circuit (51) capable of adjusting a current amount of the amplifier (50) in accordance with a desired operation mode. The current amount adjustment circuit (51) includes at least two current sources (IS10) that are individually ON/OFF-controllable in accordance with a binary control signal representing the desired operation mode.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.