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 Fiber type 50/125 µm step index standard, others optional Scrambling frequency Insertion loss 0.1 dB excluding connector loss Return loss Multimode fiber sensing Test and measurement Maximum ripple Email: [email protected] Scrambling efficiency Unique Features: Operating temperature Storage temperature High speed Power supply Website: www.generalphotonics.com Optical power handling 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

Typical Performance Data: Figure 1. 2-D beam profile with scrambler disabled. Figure 2. 2-D beam profile with scrambler enabled Figure 3. X and Y cross-sectional beam profiles with scrambler disabled. Figure 4. X and Y cross-sectional beam profiles with scrambler enabled.