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Announcements - LD (laser) Mosquito

New push on the Mosquito SS4

posted May 29, 2014, 4:14 PM by Tiberius Brastaviceanu   [ updated Jun 17, 2014, 4:20 PM ]

Testing the SS4 Mosquito and comparison with previous versions

posted Apr 10, 2014, 11:06 AM by Tiberius Brastaviceanu   [ updated Apr 10, 2014, 11:06 AM ]

Building the SS4 Mosquito

posted Sep 16, 2013, 8:41 PM by Sensorica Group   [ updated Mar 9, 2014, 5:21 PM by Tiberius Brastaviceanu ]

Photonic and electronic design


PFPD-31-1300/1550-9/125-S-50-3A-1-1 Photodiode to fiber coupler

Mosquito SS4 prototype under way

posted Aug 18, 2013, 11:40 PM by Tiberius Brastaviceanu   [ updated Mar 9, 2014, 5:21 PM ]

New parts have been ordered from OZ Optics for a new Mosquito design. The goal is to reduce feedback into the laser, which renders the laser unstable. For more on the problem open this document

Francois, Tibi and Jonathan have been very instrumental in this new effort.  

Optical Layout 

Optical Design - Mosquito with attenuation OzOptics 2


The electronics for this new Mosquito has been redesigned to include a reference signal. A first design has been completed and and a first prototype has been built. It is currently being tested. Frederic D. is working on it - see below. 

We have discussed 2 options: 
  1. use the monitor PD in the LD 
  2. split the laser output in 2, and use a small portion as reference. 
See this meeting doc we had with Philippe

Mosquito Driver Design Document

Laser Driver

posted Sep 9, 2012, 12:20 PM by Tiberius Brastaviceanu   [ updated Mar 9, 2014, 5:24 PM ]

Follow new development on the laser driver - open document. We are shrinking the electronics of the Mosquito to fit into a shot-glass. 

Laser driver
Laser driver

PCB of the driver

First version of this driver made by Frederic

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