公开(公告)号：JP2001196688A

公开(公告)日：2001-07-19

申请号：JP2000396401

申请日：2000-12-27

Applicant: LUCENT TECHNOLOGIES INC

Inventor： ACKERMAN DAVID ALAN ,  BROUTIN SCOTT L ,  PLOURDE JAMES KEVIN ,  STAYT JOHN W JR

IPC: H01S5/0687 ,  H01S5/06 ,  H01S5/0625

Abstract: PROBLEM TO BE SOLVED: To provide a method and, a device for selecting an optimum operation state in a digital wavelength stabilization control system. SOLUTION: In this method, the value of a tuning current supplied to a multi-channel laser source is controlled. For each operation laser channel, the desired inclination of the laser source is stored as the function of the tuning current. Then, the inclination of the laser source is measured as the function of the tuning current. After that, the tuning current is adjusted until an inclination being essentially close to the desired one is measured. An operation tuning current to the laser source is set to a value corresponding to the measured inclination.

公开(公告)号：CA2327981A1

公开(公告)日：2001-06-30

申请号：CA2327981

申请日：2000-12-08

Applicant: LUCENT TECHNOLOGIES INC

Inventor： ACKERMAN DAVID ALAN ,  STAYT JOHN WILLIAM JR ,  PLOURDE JAMES KEVIN ,  BROUTIN SCOTT L

IPC: H01S5/0687 ,  H01S5/06 ,  H01S5/0625 ,  H01S5/40

Abstract: A method for controlling tuning current values provided to a multichann el laser source. For each operating laser channel, a desired slope value of las er power as a function of tuning current is stored. The slope values of laser power as a function of tuning current is then measured. The tuning current is then adjusted until a slope value substantially close to said desired slope value is measured. The operating tuning current is set for the laser source that corresponds to the measured slope value.

公开(公告)号：CA2313610A1

公开(公告)日：2001-01-13

申请号：CA2313610

申请日：2000-07-05

Applicant: LUCENT TECHNOLOGIES INC

Inventor： PLOURDE JAMES KEVIN ,  BROUTIN SCOTT L ,  STAYT JOHN WILLIAM JR

IPC: H01S5/00 ,  H01S5/024 ,  H01S5/06 ,  H01S5/068 ,  H01S5/0683 ,  H01S5/0687 ,  H01S3/106

Abstract: A unique method and apparatus for locking on an absolute wavelength of las er light output by a laser package by actively compensating for a change in the temperature of an etalon optical fitter is disclosed. Changes in etalon response characteristics due to temperature changes are compensated for by the addition (or subtraction) of an output voltage offset to the voltage control signal sent to the Thermo-Electric Cooler (TEC) from a controller within the laser package. The voltage offset is calculated by monitoring the etalon temperature. The voltage offset value provides for active compensation of changes in the etalon temperature and effectively "readjusts " the output of the laser as if the etalon temperature itself had been readjusted.