The JDS Uniphase Optical Delay instrument produces a controlled amount of delay by restricting the path length and the optical delay time of transmitted light in an optical fiber. This instrument can be used in a polarization mode dispersion (PMD) emulation system or in a PMD interferometric measurement system to vary the path length in one optical branch of the system. It can also be used to vary the modulation phase of reflections for the testing of effects on transmitters.
The insertion loss (IL) is optimized to be lowest at the center of travel. The display is factory set to read 0 ps at this point.
The instrument is available with single-mode (SM) fiber or PMF. The input and output FC/PC or FC/APC connectors are front-panel mounted. A zero-offset function allows the user to set the display to 0 ps at any path time setting. The Optical Delay is a programmable instrument that can be controlled from the front panel or by the GPIB and RS-232 interfaces.

SPECIFICATIONS:

• Wavelength range: 1250 to 1700 nm
• Optical range: -85 to 85 ps
• Fiber Type: PM
• Connector Type: FC/PC
• Optical delay accuracy: ± (0.02 ps + 0.5 % of delay)
• Optical delay resolution: 0.002 ps nominal
• Optical delay repeatability: ± 0.02 ps

Additional specifications available upon request.