Spatial Mode Scrambler ? ModeMixer?0 pages

Spatial Mode Scrambler – ModeMixer™

MMS-001B
Speckle patterns from a multi-mode fiber can cause problems
in many applications that require uniform, stable light
distributions at the fiber output. ModeMixer™ is specially
designed to solve this problem. Based on General Photonics’
patented fiber squeezer technology, ModeMixer™ effectively
randomizes multimode speckle patterns over time by
modulating multiple sections of a continuous fiber with
multiple fiber squeezers. The light distribution at the output
appears uniform and stationary when viewed by cameras or
detectors with refresh rates lower than ModeMixer™’s
scrambling rate.
In addition, the all-fiber optical path
minimizes the scrambler’s insertion loss. Most importantly,
the fiber used for this device undergoes a special surface
treatment to prevent breakage under stress, ensuring high
device reliability. ModeMixer™ enables applications from
DNA sequencing to multimode fiber sensing and test and
measurement of multimode fiber devices.

Preliminary Specifications
General Photonics Corp.
5228 Edison Ave.
Chino, CA 91710
Tel: 909.590.5473
Fax: 909.902.5536

Operating Wavelength Range

530 to 1630 nm

Fiber type

50/125 µm step index standard, others optional

Scrambling frequency

500 Hz ± 100 Hz

Insertion loss

DNA sequencing

0.1 dB excluding connector loss

Return loss

Multimode fiber sensing
Test and measurement

45 dB

Maximum ripple

Email:
info@generalphotonics.com

Applications:

1 dB max, 0.5 dB typical

2

Scrambling efficiency

1, 2

Unique Features:

5000 mW

Compact

Operating temperature

0 to 70°C

Reliable

Storage temperature

−20 to 70°C

High speed

Power supply

+24VDC/1.5A

Efficient

Dimensions

Website:
www.generalphotonics.com

Optical power handling

> 80% (effective power)

9.11” ( L) x 4.17” (W) x 2.52”(H)

Notes:

1.
2.

Scrambling efficiency is defined as (Light energy ≥ 80% of maximum intensity/Total energy)*
(area over which intensity is ≥ 80% of maximum intensity /total core area).
Measured over 80 ms integration time at 635 nm.

Ordering Information:
MMS – 001B – XX
Connector Type:
FC/PC, FC/APC,
SC/PC, SC/APC, or
NC = no connectors

GP-DS-MMS-001B-10
3/18/10