Unidirectional ring lasers

Patent metadata

Field	Value
Publication number	US-9130342-B2
Application number	US-201214373385-A
Country	US
Kind code	B2
Filing date	Feb 29, 2012
Priority date	Feb 29, 2012
Publication date	Sep 8, 2015
Grant date	Sep 8, 2015

Abstract

A laser includes an active ring, a passive waveguide, and a reflector. The active ring is to generate light. The passive waveguide is associated with the active ring to capture generated light. The reflector is associated with the passive waveguide to cause captured light from the waveguide to be coupled into the active ring to trigger domination of unidirectional lasing in the active ring to generate light.

First claim

What is claimed is:

1. A laser comprising:
an active ring to generate light;
a passive waveguide associated with the active ring to capture generated light; and
a reflector associated with the passive waveguide to cause captured light from the waveguide to be coupled into the active ring to trigger domination of unidirectional lasing in the active ring to generate light.

2. The laser of claim 1 , wherein the passive waveguide includes a coupling point, a…

Assignees

• Liang Di
• Fattal David A
• Hewlett Packard Development Co

Inventors

• Liang Di
• Fattal David A

Classifications

• H01S5/323

  Electricity · mapped topic

• H01S5/021

  Electricity · mapped topic

• H01S5/0656

  Electricity · mapped topic

• H01S3/083 Primary

  Electricity · mapped topic

• H01S5/4087

  Electricity · mapped topic