ECR: Mitigation of the RF intermodulation in aLIGO broadband photodetectors

Document #:

LIGO-E1500240-v1

Document type:

E - Engineering documents

Abstract:

Modify broadband photodetectors (D1002969-v9) to reduce spurious signals generated via intermodulations.

Files in Document:

• E1500240_ECR_BBPD.pdf (24.9 kB)

Other Files:

• E1500240_ECR_BBPD.docm (29.0 kB)

Topics:

• Sensing and Control

Authors:

• Koji Arai

Keywords:

ECR ISC BBPD Broadband Photodetector

Notes and Changes:

Approved by Dennis Coyne & Peter Fritschel, 6-May-2015
See also:
https://services.ligo-wa.caltech.edu/integrationissues/show_bug.cgi?id=970

Related Documents:

• LIGO-E1200428: Broadband Photodetector (BBPD)
• LIGO-D1002969-v9: Broadband Photodetector (BBPD) Schematic
• LIGO-G1500595: BBPD improvement

Referenced by:

• LIGO-T1100467-v2: Broadband Photodetector (BBPD) Design