TIMING/DELAY MANAGEMENT MODULES General Photonics’ motorized variable optical delay line provides precision optical path length adjustment of up to 560 ps. Driven by a DC motor with an integrated encoder, the MDL-002 has a delay resolution of less than 0.3µm (1 fs), and an extremely low backlash of less than 8 fs. In addition, its advanced motion design guarantees longevity for long-term continuous operation. Low insertion loss and high reliability make this device ideal for integration in optical coherence tomography (OCT) systems, network equipment and test instruments for precision optical path length control or timing alignment. The MDL-002 is available in three configurations: 1) an integrated unit for use as a bench-top instrument for laboratory applications, 2) with the optical head and control unit separated for easy incorporation into other equipment, and 3) an OEM version with a miniature controller board. All three versions can be remote controlled by a PC or a micro-processor through an RS-232 interface. The delay line is available with either single mode or PM fiber pigtails. Insertion Loss Variation PDL Return Loss Extinction Ratio Optical Damage Power Threshold Power Supply Control Mode Display Operating Temperature Storage Temperature Fiber Type Dimensions (control unit/integrated version) Dimensions (mini controller board) Dimensions (optical head) SPECIAL POLARIZATION COMPONENTS Optical Delay Resolution Optical Delay Accuracy Optical Delay Repeatability Insertion Loss SM: 1260-1650 nm PM: 1310 or 1550 nm ±50 nm 0 ~ 330 ps for 330 ps model 0 ~ 560 ps for 560 ps model 0.3 µm or 1 fs per encoder count ± 0.01 ps or ± 3 µm ± 0.01 ps or ± 3 µm 1.0 dB nominal ± 0.3 dB over entire range for 330 ps models ± 0.5 dB over entire range for 560 ps model 0.1 dB 50 dB > 18 dB for PM model 300 mW 12 VDC / 1A max. Panel keypad and RS-232 interface 2 x 16 character LCD 0 ~ 40 °C -20 ~ 60 °C Corning SMF-28 or Fujikura PM Panda fiber 330 ps model: 1.6” (H) × 4” (W) × 7” (L) 560 ps model: 1.6” (H) × 4.4” (W) × 9” (L) 2.56” (L) × 2.56” (W) × 0.85” (H) 330 ps model: 0.7” (H) x 1.46” (W) × 5.20” (L) 560 ps model: 0.7” (H) x 1.46” (W) x 6.18” (L) Note: Values are referenced without connectors. 1. The output pigtail on either the 330 ps or 560 ps model can be replaced with an internal Faraday mirror to create a double pass device with a total range of 660 ps or 1120 ps, respectively. Contact General Photonics for details. . Compact . High resolution . Low backlash . Low insertion loss . High stability . Highest delay to length ratio . Long delay: more than 560 ps . Optical Coherence Tomography (OCT) . Optical Fourier spectrum analysis . Optical interferometry . Delay generation and measurement . Optical time division multiplexing (OTDM) . Fiber sensors APPLICATION GUIDE Operating Wavelength Motorized Variable Optical Delay Line – VariDelay™ II POLARIZATION MANAGEMENT MODULES General Photonics Corporation 909.590.5473 http://www.generalphotonics.com -51-

TIMING/DELAY MANAGEMENT MODULES Motorized Variable Optical Delay Line - VariDelay™ II Typical Performance Data: Figure 1. Insertion loss vs. optical delay. Dimensions: (Representative drawings: 560 ps version) Optical head: Integrated version/control unit Ordering Information: Configuration: Wavelength: Delay Range: mini controller board Connector type: FC/PC, FC/APC Others specify Note: For SM pigtails, the default configuration is 3mm jacketed. For PM pigtails, the default configuration is 900 \sm loose tube jacketed. -52- General Photonics Corporation 909.590.5473 http://www.generalphotonics.com...