UltraSpan
™
Raman
PRODUCT BRIEF
KEY FEATURES
Raman gain measurement and
automatic gain control (AGC)
Class 1M* laser safety classification
Detection of optical supervisory
channel (OSC)
Detection of open connectors and/
or broken fiber up to few tens of
kilometers from the pump module
Optional high power connector
cover switch safety mechanism
Supports both co- and counter-
propagating configurations
Up to 18 dB average gain for G.652
fiber (three-pump model)
Gain flattening optimization based
on fiber type and pump power.
Option for GFF
PDG <0.3 dB (triple-pump solution),
<0.6 dB (dual-pump solution)
1RU network-ready rack-mountable
packaging
Support for SNMP
OVERViEW
Finisar's UltraSpan
™
Raman is an intelligent pump unit for distributed Raman amplification
applications. The Raman is part of the UltraSpan product family, a comprehensive portfolio of
amplification equipment designed to address the challenges of ultra-long repeaterless links and
long spans within multi-span links. The product is packaged in a 1RU rack-mountable network-
ready unit, including built-in GUi and SNMP communications, and can thus be operated as a
fully independent network element.
This amplifier is comprised of an intelligent Raman pump unit containing up to three 14xx
nm semiconductor diode pump lasers, and full comprehensive electronic control. The pump
unit provides up to 18 dB Raman gain for G.652 fiber (SMF), allowing a repeaterless link to be
extended by up to 7 dB. Using patent pending technology, the Raman pump unit can operate
in full automatic gain control (AGC) mode, thus allowing the Raman gain to be set with an
accuracy of +/-0.7 dB.
The UltraSpan Raman is classified as Class 1M* with respect to laser safety. The pump unit
includes four parallel, nondependent eye safety mechanisms that shut down the unit in case
of a fiber link disruption, including open connectors (both PC and APC) or broken fiber, even
at a distance of a few tens of kilometers from the unit. This unique and comprehensive safety
mechanism is extremely important due to the high pump power required for distributed Raman
applications.
The Raman amplifier is also available as a module that can be integrated on a line card.
Additionally, for stronger Raman requirements Finisar offers the High Power Amplification
Terminal, a 3RU rack-mounted unit, capable of generating up to 2 W 14xx nm output power.
APPliCATiONS
long repeaterless links (e.g. island
hopping, desert ranges and oil rigs)
low latency links (less FEC and O-E-O
conversion)
Storage area networks (SANs),
remote locations, disaster recovery
Security-sensitive applications
Traversing challenging spans within
multi-spans links
improving OSNR in long-haul and
ultra-long haul links
40 Gb/s and 100 Gb/s transmission
and/or increasing channel count to
80+ WDM channels
Tx
Tx
Tx
Tx
14xx Co
Prop Raman
Pumps
14xx Counter
Prop Raman
Pumps
M
U
X
Transmit Site
Receive Site
D
E
M
U
X
Rx
Rx
Rx
Rx
Booster
14xx/15xx
14xx/15xx
Pre-
amp
DCF/M
UltraSpan Raman
KEY OPTiCAl SPECiFiCATiONS
Parameter
Min.
Wavelength Range
Wavelength Range, OSC
Input Power Range
Input Power Range, OSC
Maximum Pump Power
Average Gain (G.652 fiber)
Gain Setting Accuracy in AGC Mode
Gain Flatness
Signal Insertion Loss
OSC Insertion Loss
Noise Figure
PDG, PDL
PMD
OSC Drop Isolation
Laser Safety
Monitored Parameters
30
Class 1M*
Pump power, signal power (either co- or counter-propagating), line back-reflection at 1400-1500 nm
band and 1500-1520 nm band, sub modulation on OSC power
1529
1500
-40
-50
Specifications
Max.
1565
1520
+5
-10
550
850
12
18
+/- 0.7
0.9
1.2
<0.5
1.8
1.8
-1
0.3
0.2
Unit
nm
nm
dBm
dBm
mW
dB
dB
dB
dB
dB
dB
dB
psec
dB
CDRH 1040.10, iEC 60825-1
Worst case at typical gain
At lower gains NF can reach 0 dB
For triple pump model
For dual pump model PDG <0.6 dB
2 pumps
3 pumps
With GFF
At line port with Raman off
2 pumps
3 pumps
Typical for 2 pumps
Typical for 3 pumps
Remarks
MECHANiCAl, ENViRONMENTAl, ElECTRONiC SPECiFiCATiONS
Parameter
Min.
Dimensions (WxHxD)
Front Panel Connectors
High E2000 Cover Switch
Fans
Alarm LEDs
Operating Environment Temperature
Storage Temperature
Humidity
Standards
Supply Voltage
Power Consumption
Supply Current @ 48 V Supply
430x44x280
Communication: RJ45, 9-Pin D Type
Power: 2 x 15-Pin Type
Mechanical protection for eye safety
4
Output power, eye safety, communication, fan
-5
-40
5
-36 to -76
55
1.5
+55
+85
90
ETSi, NEBS level 3
V
W
A
3 pumps
3 pumps
°C
°C
%
Specifications
Max.
Unit
mm
1RU
Supports Ethernet, RS232, and SNMP ver 2
and 3, or web server
Optional
including hot-swappable backup fan
Two color lEDs are used:
Green - OK Red - Fault
Remarks
* Class 1M products are not hazardous under normal circumstances, but may pose an eye hazard when the laser output is
viewed with certain optical instruments (for example eye loupes, magnifiers and microscopes) within a distance of 100 mm
1389 Moffett Park Drive
Sunnyvale, CA 94089-1133
www.finisar.com
Phone:
Sales:
Email:
+1-408-548-1000
+1-408-541-5690
sales@finisar.com
Visit Our Website
© 2012 Finisar Corporation. All rights reserved. Finisar is a registered trademark and UltraSpan is a pending
trademark of Finisar Corporation. Features and specifications are subject to change without notice. 10/12
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
