Homodyne Photodetector Design

Document #:

LIGO-T1500040-v2

Document type:

T - Technical notes

Abstract:

Design description of the homodyne photodetector developed for quantum noise experiments.

Some comments on design at 3.1 MHz: http://emvogil-3.mit.edu/ilog/pub/ilog.cgi?group=lasti&task=view&date_to_view=08/02/2016&anchor_to_scroll_to=2016:08:02:19:03:10-eoelker

A means of using the 3.1MHz design: https://emvogil-3.mit.edu/ilog/pub/ilog.cgi?group=lasti&date_to_view=07/16/2015&anchor_to_scroll_to=2017:01:18:11:16:24-lee

Note that this design is not compatible with the footprint of new Laser Components high QE diodes. It also requires some modifications for a lower 3.1MHz CLF frequency.

This are addressed in the new aligo homodyne circuit E1700135

Files in Document:

• homodyne.pdf (file is not accessible)

Other Files:

• pinout of NEW high QE diodes for use in the homodyne (highQEPD_datasheet_pinout.pdf, file is not accessible)

Topics:

• Sensing and Control

Authors:

• Tomoki Isogai

Keywords:

homodyne electronics

Related Documents:

• LIGO-D1300671: Homodyne Detector
• LIGO-E1700135: aLIGO, SQZ, Homodyne Photodetector

Referenced by:

• LIGO-E1700135: aLIGO, SQZ, Homodyne Photodetector