High bit rate clock recovery of NRZ data by all-optical processing in a semiconductor optical amplifier and direct optical injection locking of a self-oscillating phototransistor

Author

Bilenca, A. ; Dahan, D. ; Lasri, J. ; Eisenstein, G. ; Ritter, D.

Author_Institution

Dept. of Electr. Eng., Technion-Israel Inst. of Technol., Haifa, Israel

Volume

14

Issue

3

fYear

2002

fDate

3/1/2002 12:00:00 AM

Firstpage

399

Lastpage

401

Abstract

In this letter, we describe a novel all-optical processing technique of nonreturn-to-zero signals in a semiconductor optical amplifier, which enables spectral enhancement at the bit rate frequency. The processed optical signal is used for direct optical injection locking of an oscillator based on a heterojunction bipolar phototransistor. Clock extraction at 10 Gb/s and potential operation at 40 Gb/s and beyond are demonstrated.

Keywords

heterojunction bipolar transistors; integrated optoelectronics; optical receivers; phase locked oscillators; phototransistors; semiconductor optical amplifiers; synchronisation; timing; 10 Gbit/s; 40 Gbit/s; all-optical processing technique; bit rate frequency; clock extraction; counterpropagating configuration; degenerate cross-gain modulation; direct optical injection locking; heterojunction bipolar phototransistor; high bit rate clock recovery; nonreturn-to-zero signals; optical receiver; phase-locked clock-generating oscillator; self-oscillating phototransistor; semiconductor optical amplifier; spectral enhancement; timing extraction; Bit rate; Clocks; Frequency; Heterojunctions; Injection-locked oscillators; Optical signal processing; Phototransistors; Semiconductor optical amplifiers; Signal processing; Stimulated emission;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/68.986826

Filename

986826