Ortel will be introducing the 755MM-X, 1550nm Transmitter optimized
through 0 to 65 km with High SBS Suppression, during the second
calendar quarter of 2006.
Ortel’s Model 755MM-X is a recently developed 1550 nm transmitter
suitable for link lengths of up to 65Km. 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 may be made available with power
supply options and SNMP capability.
It will feature extremely high SBS suppression performance, making it
ideal for either FTTP or HFC network applications. The performance
specifications indicated below are subject to change.
Applications
Video signal distribution to
HFC CATV and FTTP nodes
Video overlay in passive
optical networks (PON)
Replacement for Externally
Modulated Transmitters
Features
Optimized RF integration of
predistorter, amplifiers and
laser
Dual redundant power
supplies
Min
Typ
25
-
-
-
52
-
-
-
-
-
Max
50
1560
-
870
-
-65
-65
Units
°C
nm
dBm
MHz
dB
dBc
dBc
dBm
dB
dB
1527
Performance Highlights
Supports SNMP protocol
Complete, efficient laser bias
and TEC control circuitry
OEM/ODM opportunities
available through Ortel
Digital monitoring and control
ITU Wavelengths
Operating Temperature Range
Wavelength (Multiple Options)
Optical Power
Frequency Response
CNR
CSO
CTB
SBS Suppression Capability
RF Input Return Loss
Optical Return Loss
0
1530
5
47
-
-
-
-
16
40
17
-
-
Noise and distortion performance above assume 79 channel NTSC loading with no QAM, 0 dBm
received optical power.
For more information on this and other products:
Contact Sales at Ortel 626-293-3400, or visit www.emcore.com.
PRODUCT BRIEF| NOVEMBER 2005
Model 755MM-M Optical Transmitter
1550 nm, 10 km, High SBS Suppression
Ortel will be introducing the 755MM-M, 1550nm Transmitter optimized
through 0 to 10 Km with SBS Suppression, during the second calendar
quarter of 2006.
Ortel’s Model 755MM-M is a recently developed 1550 nm transmitter
suitable for link lengths of up to 10 Km. The 75Ω RF video input supports
frequencies up to 870 MHz. A 50Ω RF input supports frequencies of up to
2200 MHz for FTTP, L-Band satellite, and wireless applications. 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 may be made available with power supply options and SNMP
capability.
It will feature 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
Min
Operating Temperature Range
Wavelength (Multiple Options)
Optical Power
Frequency Response
CNR
CSO
CTB
SBS Suppression Capability
RF Input Return Loss
Optical Return Loss
0
1530
7
47
950
-
-
-
-
16
40
Typ
25
-
-
-
-
48
-
-
-
-
-
Max
50
1560
-
870
2200
-
-60
-65
Units
°C
nm
dBm
MHz
MHz
dB
dBc
dBc
dBm
dB
dB
Applications
Video signal distribution to
HFC CATV and FTTP nodes
Video overlay in passive
optical networks (PON)
Replacement for Externally
Modulated Transmitters
Features
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
1527
17
-
-
Noise and distortion performance above assume 79 channel NTSC loading with no QAM, -5 dBm
received optical power.
For more information on this and other products:
Contact Sales at Ortel 626-293-3400, or visit www.emcore.com.
PRELIMINARY DATASHEET
|
FEBRUARY 2006
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
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
Parameter
Operating Temperature Range
Wavelength (Multiple Options)
Optical Power
Frequency Response
CNR
CSO
CTB
SBS Suppression Capability
RF Input Return Loss
Optical Return Loss
Min
0
1530
5
47
47
-
-
19
16
40
Typ
25
-
-
-
48
-
-
-
-
-
Max
50
1560
-
870
-
-60
-65
23
Unit
°C
nm
dBm
MHz
dB
dBc
dBc
dBm
dB
dB
Applications
Video signal distribution to
HFC CATV and FTTP nodes
Video overlay in passive
optical networks (PON)
Replacement for Externally
Modulated Transmitters
-
-
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.
For more information on this and other products:
Contact Sales at Ortel 626-293-3400, or visit www.emcore.com.
755MM-S 1550 nm Transmitter
PRELIMINARY DATASHEET- FEBRUARY, 2006
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
Operating Temperature Range
Storage Case Temperature Range
RF Input Level
Symbol
T
OP
T
stg
-
Min.
0
-20
-
Max.
50
65
2
Unit
°
C
°
C
dBm
RF Characteristics
Parameter
Bandwidth
Frequency Response
RF Input Level with AGC
CNR
CSO
2
CTB
2
Input Impedance
Video Input Return Loss
Test Port Input Return Loss
1.Excludes tilt component.
2.CW carriers, 79 channel NTSC channel plan, 4 MHz noise bandwidth, -5 dBm received power, SMF-28 or equivalent.
Condition
-
-
-
-
-
-
45 – 870 MHz RF Input
45 to 870 MHz
45 to 870 MHz
Min
47
-
-10
47
-
-
-
16
16
Typ
-
-
-8
48
-
-
75
-
-
Max
870
1.5
-6
-
-60
-65
-
-
-
1
Unit
MHz
dB
p-p
dBm
dB
dBc
dBc
Ohms
dB
dB
Optical Characteristics
Parameter
Optical Output Power
SBS Threshold
Side Mode Suppression Ratio
Optical Return Loss
1
Condition
-
20 km SMF-28
-
APC style connector
Min
-
23
30
40
Typ
5
-
40
-
Max
-
-
-
-
Unit
dBm
dBm
dB
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
2 of 5
755MM-S 1550 nm Transmitter
PRELIMINARY DATASHEET- FEBRUARY, 2006
Power Requirements
Parameter
AC Input Range
DC Input Range
Power
Min.
94
50
36
-
Max.
245
60
60
50
Unit
Vac
Hz
Vdc
W
Package Characteristics
Parameter
Height
Width
Depth
Weight
Dimension
1.75 (44), 1U
19 (483)
17.77(452) with fans
9.0 (4)
Unit
in. (mm.)
in. (mm.)
in. (mm.)
lbs. (kg.)
Part Number / Ordering Information
(Note: customization can be made available upon request)
据外媒报道，萨里大学（University of Surrey）的研究人员开发出一种无需依赖GPS即可在人口密集的城市地区精确定位设备位置的人工智能系统。该系统可将定位误差从734米缩小到22米以内，这对于自动驾驶汽车和救援车辆等技术的发展意义重大。 图片来源： 萨里大学 在发表于《IEEE Robotics and Automation Letters》的论文中，研究人员介绍了PEn...[详细]
DSP 与 ARM 处理器
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