PRELIMINARY DATASHEET | FEBRUARY 2006
For more information on this and other products:
Contact Sales at Ortel 626-293-3 400, or visit www.emcore.com.
Model 755MM-S Optical Transmitter
1550 nm, 20 km, High SBS Suppression
Ortel’s Model 755MM-S is a recently developed 1550 nm transmitter
suitable for link lengths of up to 20Km. The 75Ω RF video input
supports frequencies up to 870 MHz. Also integrated into the RF/Optical
design are Ortel’s low chirp control and noise suppression circuitry.
Integrated within the design is Ortel’s patented pre distortion technology
to provide outstanding performance with any of Ortel’s wide range of
cooled broadband lasers. These modules have dual redundant power
supplies with SNMP capability.
It features Ortel’s proprietary Enhanced Optical Spectrum Reshaping
Technology with extremely high SBS suppression performance, making
it ideal for either FTTP or HFC network applications. The performance
specifications indicated below are subject to change.
Performance Highlights
Parameter Min Typ Max Unit
Operating Temperature Range 0 25 50 °C
Wavelength (Multiple Optio ns) 1530 - 1560 nm
Optical Power 5 - - dBm
Frequency Respons e 47 - 870 MHz
CNR 47 48 - dB
CSO - - -60 dBc
CTB - - -65 dBc
SBS Suppression Capability 19 - 23 dBm
RF Input Return Loss 16 - - dB
Optical Return Loss 40 - - dB
Noise and distortion performance above assume 79 channel NTSC loading with no QAM, -5 dBm
received optical power. See following pages for complete specifications and operating/test
conditions.
Applications
Video signal distribution to
HFC CATV and FTTP nodes
Video overlay in passive
optical networks (PON)
Replacement for Externally
Modulated Transmitters
Features
Enhanced Optical Spectrum
Reshaping Technology
Optimized RF integration of
predistorter, amplifiers and
laser
Dual redundant power
supplies
Supports SNMP protocol
Complete, efficient laser bias
and TEC control circuitry
OEM/ODM opportunities
available through Ortel
Digital monitoring and control
ITU Wavelengths
PRELIMINARY DATASHEET- FEBRUARY, 2006
755MM-S 1550 nm Transmitter
Absolute Maximum Ratings
Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are
absolute stress ratings only. Functional operation of the device is not implied at these or any other conditions in
excess of those given in the operational sections of the data sheet. Exposure to absolute maximum ratings for
extended periods can adversely affect device reliability.
Parameter Symbol Min. Max. Unit
Operating Temperature Range TOP 0 50
° C
Storage Case Temperature R ange Tstg -20 65 ° C
RF Input Level - - 2 dBm
RF Characteristics
Parameter Condition Min Typ Max Unit
Bandwidth - 47 - 870 MHz
Frequency Response - - - 1.51dBp-p
RF Input Level with AGC - -10 -8 -6 dBm
CNR - 47 48 - dB
CSO2- - - -60 dBc
CTB2- - - -65 dBc
Input Impedance 45 – 870 MHz RF Input - 75 - Ohms
Video Input Return Loss 45 to 870 MHz 16 - - dB
Test Port Input Return Loss 45 to 870 MHz 16 - - dB
1.Excludes tilt component.
2.CW carriers, 79 channel NTSC channel plan, 4 MHz noise bandwidth, -5 dBm received power, SMF-28 or equivalent.
Optical Characteristics
Parameter Condition Min Typ Max Unit
Optical Output Power - - 5 - dBm
SBS Threshold 20 km SMF-28 23 - - dBm
Side Mode Suppression Rati o - 30 40 - dB
Optical Return Loss1APC style connector 40 - - dB
1. In order to prevent reflection-induced distortion, the laser must be connected to an optical cable having a return loss of at least 55 dB for discrete
reflections and 30 dB for distributed reflections
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PRELIMINARY DATASHEET- FEBRUARY, 2006
755MM-S 1550 nm Transmitter
Power Requirements
Parameter Min. Max. Unit
AC Input Range 94
50 245
60 Vac
Hz
DC Input Range 36 60 Vdc
Power - 50 W
Package Characteristics
Parameter Dimension Unit
Height 1.75 (44), 1U in. (mm.)
Width 19 (483) in. (mm.)
Depth 17.77(452) with fans in. (mm.)
Weight 9.0 (4) lbs. (kg.)
Part Number / Ordering Information
(Note: customization can be made available upon request)
755MM-S - - - - XX -
Channel Plan Output SBS Connectors ITU Wavelengths AC Power Cord
A = NTSC 80-Ch 05 = 5 dBm (Std) A = 23 dBm (Std) SC = SC/APC ee= 21, 1560.61nm NA = N.AMERICA
FC = FC/APC :UK = U.K. & IRE.
EC = E2000/APC ee= 59, 1530.33 nm EU = EUROPE
EC = EC NEMA
JP = JAPAN
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PRELIMINARY DATASHEET- FEBRUARY, 2006
755MM-S 1550 nm Transmitter
ITU Wavelength Channel Designations
Channel Wavelength
(nm) Channel Wavelength
(nm) Channel Wavelength
(nm)
21 1560.61 35 1549.32 49 1538.19
23 1558.98 37 1547.72 51 1536.61
25 1557.36 39 1546.12 53 1535.04
27 1555.75 41 1544.53 55 1533.47
29 1554.13 43 1542.94 57 1531.90
31 1552.52 45 1541.35 59 1530.33
33 1550.92 47 1539.77
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PRELIMINARY DATASHEET- FEBRUARY, 2006
755MM-S 1550 nm Transmitter
Laser Safety Information
This product meets the appropriate standard in Title 21 of the Code of Federal Regulations (CFR). FDA/CDRH
Class IIIb laser product. This device has been classified with the FDA/CDRH under accession number 0220800.
Single-mode bulkhead receptacles with internal SC/APC connectors (standard).
Wavelength = 1.5 μm. Maximum power = 30 mW.
Product is shipped with internal AC/DC and DC/DC power supply converters.
Caution: Use of controls, adjustments and procedures other than those specified herein may result in
hazardous laser radiation exposure.
Information contained herein is deemed to be reliable and accurate as of issue date. EMCORE reserves the right to change the design or specifications of
the product at any time without notice. EMCORE and the EMCORE logo are trademarks of EMCORE Corporation.
© Copyright 2003. EMCORE Corporation
EMCORE Corporati on
2015 W. Chestnut Street
A
lhambra, CA 91803-1542
Phone: 626-293-3400
Fax: 626-293-3428
www.emcore.com
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