Patent · US Expired

Tunable laser assembly

US5297155A · kind A · utility

8Cited by

4References

15Claims

0Family size

Assignee

E-Tek Dynamics, Inc. · US

Inventors

Jing-Jong Pan · Melbourne, US
Frank Liang · San Jose, US
Xing-Liang Jing · San Jose, US
Ming Shih · Milpitas, US

Key dates

Filing date	Mar 29, 1993
Grant date	Mar 22, 1994
Priority date	—
Expiry date	Mar 29, 2013

Classification

Technology area (CPC H)Electricity
CPC primaryH01S3/139
WIPO fieldOptics
WIPO sectorInstruments

Abstract

An assembly for tuning a laser by a stepper motor alone is provided. A diffraction grating forming a resonance cavity with an end of the laser is rotated by the stepper motor. A follower arm affixed to the rotatable grating, engages a cam, which is driven by the stepper motor. The cam and follower arm are designed so that there is a linear relationship between the rotation of the stepper motor and that of the grating.

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