Raman Fiber Multiplexer

The Fiber-Optic Multimlex System for Raman Spectroscopy (U.S. patent No. 6,859,581B1) can be used to expand the use of our Raman Spectrometer. Through switching the excitiation and collection fibers, Our raman spectrometer can monitor up to 18 probes. This can be done with minimal signal loss, and very high repeatability.

The Fiber-Optic Multiplexer had become popular with feed-forward applications for refineries, where our PI-200 and multiplexer control their blending header while looking ant the incomming component streams.

The Fiber-optic Multiplex system can come in a variety of options. We offer a 9 and a 18 Max channels, and also a lab, or a 19" rack mount version.

(Closeup of the 18 ports available.)

Fiber-Optic Multiplex System Specifications

Channels	one to 18 channels
Insertion Loss	Total insertion loss is less than 1 dB.
Optical Repeatability	Repeatability is 99.5%.
Wavelength Range	633 nm to 860 nm.
Switching Time Between Adjacent Channels	Switching time between adjacent channels is aprox. one second.
Operating Temperature	10 to 45 degrees C
Humidity Operating Conditions	Less than or equal to 95 % non-condensing humidity.
Switching Cycles	greater than 100 million cycles.
Fiber Size	Accomodates multimode fibers (~50 um to 1000 um diameter), Either FC or SMA type connectors,
Instrument Size	17" x 17" x10"
Weight	aprox. 55 lbs.
Power Requirements	Universal input 48 to 220 VAC, with 110 VAC @ 5A
Mechanical Repeatability	0.00004" (~1um)
Step Resolution	0.000014" (~0.35um)
Interface	RS232 serial connection and control from computer.
Maintenance	None, There are no gears to wear and the bearings are sealed and prelubricated.