PriTel, Inc 

Fiber Optic

PriTel, Inc.
P.O. Box 4025
Naperville, IL 60567,USA
Ph: 630-983-2200
Fx: 630-983-2260

Optical Clock Multipliers

Optical Clock Multiplier

PriTel’s OCM Series of Optical Clock Multipliers are designed for applications in high-capacity fiberoptic communications research at 1550 nm. Based on OTDM (optical time-delay multiplexing), these passive multiplexers increase the pulse rate of input signals by factors of 2, 4, 8, or 16 for RZ input-pulse frequencies of 10 GHz to 40 GHz.

PriTel's OCM is often used in Bit Error Rate Testing of 27-1 bits at 40 GHz with a 10 GHz input. For other bit patterns and input repetition rates, the reconfigurable version of the OCM is available.

Output frequencies up to 320 GHz have been achieved with PriTel's OCM. For example, see S. Nakamura, Y. Ueno, and K. Tajima, "Error-free all-optical demultiplexing at 336 GB/s with a hybrid- Integrated Symmetric-Mach-Zehnder Switch," Optical Fiber Communication Conference (OFC 2002), March 17-22, 2002, Anaheim, Postdeadline Paper FD3.

(For additional information, see Application Notes)

Available Performance Configurations

Click heading for
specifications in PDF Format
OCM-2 OCM-4 OCM-8 OCM-16
Multiplier factor 2 X 4 X 8 X 16 X
Insertion loss <5 dB <10 dB <15 dB <20 dB
Available Outputs 2X 2X, 4X 2X, 4X, 8X 2X, 4X, 8X, 16X
Tunable Delay 70 ps
Fiber Type All PM with integrated polarizer.
FC/SC with APC/PC, other connectors available on request
Pol. Extinction Ratio >20 dB
Output-Input Extinction Ratio >35dB
Temperature stability 10 ppm/ºC
Dimensions (2U) 10 cm x 26 cm x 36cm

Model OCM-4: RF Spectrum of Output Signal

            Input = 10 GHz, Output = 40 GHz
OCM RF Suppression

In OTDM applications, it is important to suppress the input repetition rate in the output signal. PriTel's OCM maintains an output-to-input signal ratio >35 dB, as shown in the RF spectrum on the left. This high performance is achieved through PriTel's design and construction techniques.

Technical Specifications in PDF Format (Adobe® Acrobat® Reader™ )

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