INSTRUMENTS POLARIZATION TIMING/DELAY SPECIAL POLARIZATION COMPONENTS MANAGEMENT MODULES MANAGEMENT MODULES Polarization Scrambler Module General Photonics’ 4-axis Polarization Scrambler Module uses a breakthrough all-fiber technology to effectively randomize polarization states. Depolarizing by polarization scrambling has many important applications: Scrambling the input polarization can remove measurement uncertainties caused by the polarization sensitivity of the device under test. Performance degradation due to polarization-dependent-gain (PDG) induced in optical amplifiers can be suppressed by scrambling the State of Polarization (SOP). Polarization scrambling can also be used in systems to facilitate and simplify PMD monitoring. Based on a patented, award-winning allfiber technology, the PCD-003 delivers superior performance with extremely low insertion loss, back reflection and residual phase and amplitude modulation. In addition, the total power consumption is typically less than 10W. Specifications: Insertion Loss Center Operating Wavelength Return Loss Optical Power Handling Residual Amplitude Modulation Residual Phase Modulation Power Supply Power Consumption Scrambling Frequencies Factory set 4 fixed frequencies, distributed between DC to > 700 kHz 10 ~ 40 °C Storage Temperature Board Dimensions Notes: Values are referenced without connectors 1. Center Wavelength ± 50 nm 2. At 500 Hz detection bandwidth 3. Measured from a photodetector at PCD-003 output using a spectrum analyzer. A polarizer is placed in front of the photodetector to convert polarization modulation to amplitude modulation. . Minimal insertion loss and back reflection . Low residual phase and amplitude modulation . Low power consumption . PDG (polarization dependent gain) mitigation . Polarization sensitivity elimination . Facilitating PMD emulation . Facilitating PMD compensation . Facilitating PDL measurement APPLICATION GUIDE Operating Temperature -40- General Photonics Corporation 909.590.5473 http://www.generalphotonics.com

Polarization Scrambler Module Figure 2. Degree of Polarization (DOP) as a function of detection bandwidth. SPECIAL POLARIZATION COMPONENTS Figure 1. 1 second (3500 points) SOP display at PCD-003 output measured by Agilent 8509C. TIMING/DELAY MANAGEMENT MODULES POLARIZATION MANAGEMENT MODULES Typical Performance Data: See page 42 for micro-processor option, page 44 for tunable mini-scrambler, page 66 for passive depolarizer Connector type: FC/PC, FC/APC SC/PC, SC/APC or NC = no connectors Others specify APPLICATION GUIDE Figure 3. Effective scrambling bandwidth. General Photonics Corporation 909.590.5473...