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

Now in our 13th consecutive year of business worldwide.
We manufacture a range of customized fiber lasers, optical fiber
amplifiers, and multiplexers for a variety of applications at
1550 nm, 1060 nm, and 775 nm.

Contact Our International Representatives


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Our product lines:

1550-nm Actively Mode-locked Fiber Lasers
1060-nm Actively Mode-locked Fiber Lasers
RZ Transmitters
Pulse Compressors
1550-nm Passively Mode-locked Fiber Lasers
1060-nm Passively Mode-locked Fiber Lasers
Low Power Amplifiers
High Power Amplfiiers
Polarization Maintaining EDFAs
Sub-Picosecond EDFAs
Low-Noise High Power EDFAs
L-Band Amplifiers
Second Harmonic Generators

Optical Clock Multipliers


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.

Output frequencies up to 320 GHz have
been achieved with PriTel's OCM. 
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.

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

(For additional information, see Applications Note.)

Available Performance Configurations

Click headings to the right for specifications in PDF Format:
Multiplier factor


2 X


4 X


8 X

16 X
Insertion loss < 5 dB < 10 dB < 15 dB < 20 dB
Tunable delay

70 ps

Polarization extinction ratio 

>20 dB

Signal ratio of output (20 GHz 
or 40 GHz)-to-input (10 GHz)

>35 dB

Temperature stability 

10 ppm/°C


10 cm x 26 cm x 28 cm


Model OCM-4
RF Spectrum of Output Signal
Input = 10 GHz, Output = 40 GHz

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™)

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