US 2018/0026424 A1 · Electroabsorption Modulator Integrated Distributed Feedback Laser with Integrated Semiconductor Optical Amplifier, and Driving Method for Same

Abstract

The present invention relates to a driving method for an SOA integrated EA-DFB laser monolithically-integrating a DFB laser portion, an EA modulator portion and an SOA portion, on a same substrate, wherein an electric current ISOA is injected into the SOA portion within a range of a power consumption not exceeding a total amount of a power consumption eliminated in the DFB laser portion of the SOA integrated EA-DFB laser and a power consumption eliminated in the EA modulator portion of the SOA integrated EA-DFB laser by eliminating an elimination amount ΔIDFB from a maximum injection electric current into a DFB laser portion of an EA-DFB laser allowable in a case of mounting the EA-DFB laser on an optical transmission module.

Claims8

Dependent claims

A driving method for an SOA integrated EA-DFB laser, the SOA integrated EA-DFB laser monolithically-integrating a DFB laser portion, an EA modulator portion provided in the latter part of the DFB laser portion and an SOA portion provided in the latter part of the EA modulator portion, on a same substrate, comprising:

injecting an electric current ISOA into the SOA portion within a range of a power consumption not exceeding a total amount of a power consumption eliminated in the DFB laser portion of the SOA integrated EA-DFB laser and a power consumption eliminated in the EA modulator portion of the SOA integrated EA-DFB laser by eliminating an elimination amount ΔIDFB from a maximum injection electric current into a DFB laser portion of an EA-DFB laser allowable in a case of mounting the EA-DFB laser on an optical transmission module.

Dependencies are inferred from the claim text.

Facts

Application

15/547,886Filed 16 Feb 2016

Priority

JP 2015-03330923 Feb 2015

Published

25 Jan 2018

Term ends

Not estimatedThe source records don’t support an estimate.

Classification14 codes

H01S 5/042
Processes or apparatus for excitation, e.g. pumping, e.g. by electron beams: electrical excitation ; Circuits therefor
H01S 5/026
Structural details or components not essential to laser action: monolithically integrated components, e.g. waveguides, monitoring photo-detectors,…
H01S 5/0265
Monolithically integrated components, e.g. waveguides, monitoring photo-detectors, drivers: intensity modulators
H01S 5/0622
In single-section lasers: controlling the frequency of the radiation

Electroabsorption Modulator Integrated Distributed Feedback Laser with Integrated Semiconductor Optical Amplifier, and Driving Method for Same

Life of this patent

Electroabsorption Modulator Integrated Distributed Feedback Laser with Integrated Semiconductor Optical Amplifier, and Driving Method for Same

Life of this patent

Abstract

Claims8