BOOKHAM TL5000VLJ

Data Sheet
LambdaFLEX™ iTLA
TL5000VLJ Integrable Tunable Laser Assembly with
variable output power
Issue 1 January 2007
The Bookham LambdaFLEXTM iTLA is a high performance
continuous wave (CW) tunable laser source for use in the L-band
window covering 1568nm to 1607nm. The DSDBR laser source
and control electronics are populated onto a circuit board
assembly and mechanical interface. The iTLA features variable
power, shuttered tuning, trace tone and SBS dither circuitry.
Comprehensive control and system reporting is provided over
the RS232 interface.
The iTLA implements the Bookham DSDBR wideband tunable
laser. This laser is a fully monolithic InP chip designed for high
volume, low cost manufacturing. With no moving parts, it is a
low voltage electronically tuned device enabling rapid
wavelength switching via straightforward control electronics. The
integrated semiconductor optical amplifier (SOA) provisions the
optical power control and also acts as a shutter to allow dark
tuning when reverse biased.
The laser chip is operated at a fixed temperature, thereby
eliminating any slow speed wavelength drift during tuning.
Wavelength stability is guaranteed by an internal wavelength
locker providing control to a 50GHz or 100GHz ITU wavelength
grid. Front facet output power monitoring is also provided by the
wavelength locker for feedback control to the SOA. The device
is supplied with polarization maintaining fibre for use with an
external modulator.
Features:
• Full Band tunable source
L band (1568-1607nm)
• High power +10dBm EOL
• Variable power range of 6dB
• High speed electronic tuning <10ms ch to ch
• Electronic shutter for dark tuning
• Low power dissipation, 3.8W typical
• Excellent SMSR >40dB
• Narrow line-width
• Low RIN
• Wavelength stabilized for 50GHz or 100GHz ITU-T
channel spacing
• Optical power monitor
• SBS Dither / Trace tone capability
• Case operating temperature range -5ºC to +75ºC
• Simple RS232 interface
• C band version also available
• RoHS compliant
• Telcordia Qualified to GR 468
Applications:
• Regional metro / Long Haul / Ultra Long Haul
• Test and Measurement
1
Data Sheet
Optical Characteristics
The following parametric limits detailed are for a case temperature range of -5°C to 75°C unless otherwise stated.
EOL figures will be confirmed after full qualification
TL5000 iTLA Performance
Parameter
Max
Unit
5
11
dBm
Note
[4]
-0.8
+0.7
dB
Note
[5]
Frequency Range
186.5
191.1
THz
L band, 92channels,
50GHz spacing.
Wavelength Range
1568.77
1607.47
nm
L Band
Absolute output power range
Optical power budget
Min
No of Channels
92
SMSR
40
Linewidth
Typ
50GHz spacing
45
1
RIN (10MHz-1GHz) (1-10GHz)
OSNR
50
Polarization extinction ratio
20
Return Loss
-8.2
Locked frequency accuracy
-2.5
Shuttered output power
dB
5
MHz
Lorentzian
-110
-145
dB/Hz
Average RIN
dB
0.1nm optical bandwidth
55
dB
-50
Back Reflection Tolerance
Conditions
-35
-40
dB
dB
For RIN <-140dB/Hz
+2.5
GHz
EOL
-30
dBm
Linewidth for Brillouin suppression
250
1000
MHz
Brillouin frequency selection
10
100
kHz
Note
[1]
Trace Tone Frequency
10
500
kHz
Note
[1]
10
%
Tuning Speed
10
ms
iTLA 'cold-start' initialisation time
60
s
Trace Tone Modulation Depth
4
Various scenarios apply, Note [2]
Note [3]
Note:
[1] The Bookham iTLA incorporates a single onboard oscillator which is used to provide either SBS suppression or Trace Tone functionality, but cannot provide both functions
simultaneously. However the iTLA MFR1 input can be used to enable an external frequency source to be applied enabling both SBS suppression and Trace Tone functionality.
[2] The Bookham laser is guaranteed to tune within 10ms which is to comply with the OIF "Application A" (SONET/SDH Protection). However, this applies only for tuning
between channels with or without the laser enabled. Enabling the laser from a disabled state will take longer ~180ms as the tuning has to be executed more slowly in order to
maintain frequency accuracy and comply with the power/frequency mask.
[3] Time required from application of Vcc and Vee supplies for the iTLA to reach an operational state . Complies with the OIF MSA module warm up time.
[4] This is defined as the Start of Life (SOL) power adjustment range, specified at an iTLA case temperature of 25ºC.
2
[5] Specified over product life, operational temperature range and channel optical power budget.
Data Sheet
iTLA Frequency versus Power Mask
The iTLA is guaranteed to comply with the frequency versus power mask shown below. This mask applies during iTLA power enable
and disable operations and also during channel changing operations.
Pnom dBm
Pnom-16dB
- 20dBm
-16GHz
-2.5GHz
-10GHz
+16GHz
+2.5GHz
f ITU
+10GHz
Electrical Characteristics
TL5000 iTLA Performance
Parameter
Min
Typ
Max
Unit
+3V3 supply voltage
3.15
3.3
3.45
V
1100
1500
mA
-4.94
V
+3V3 supply current
-5.2V supply voltage
-5.45
-5.2V supply current
30
100
mA
Power Dissipation
3.8
5.5
W
0.8
V
LVTTL Input
VIN
LOW
LVTTL Input
VIN
HIGH
2
LVTTL Output VOUT LOW
LVTTL Output VOUT HIGH
RS232 Interface
3
V
V
2.4
9600
For shuttered operation only
V
0.5
Power Supply Noise
Conditions
1
%rms
100Hz to 20MHz
115200
Baud
Default 9600 baud
Data Sheet
Environmental Characteristics
TL5000 iTLA Performance
Parameter
Min
Storage Temperature
Max
Unit
-40
+85
ºC
Operating Temperature
-5
+75
ºC
Operating Humidity
5
85
%RH
Electrostatic Discharge
500
Flammability
V0
Typ
Conditions
With suitable heatsink
V
MIL-STD-883, Method 4
Fibre coat UL94-HB <1gm mass
ITLA Block Diagram
SOA Amp lify
Shutter
+
Trace Tone
DSDBR
LASER
Locker TIA
Fine Wavelength
Control
SBS Dither
TEC Switching
Driver
Wavel ength
Tun ing
Selec tion
Control
Locker Control
Waveform
Generato r
Thermistor Amplifier
CPU
Power
Regulation
LVTTL Control
RS232
4
14W Connector
Data Sheet
Connector Signal Function
Name
Function
Active
Description
DIS
Disable Laser
LOW
Optical output terminated
SRQ
Service Request
LOW
Service interrupt poll
MS
Module I/O reset
TXD
RS232 transmit data
LVTTL RS232 Tx
RXD
RS232 receive data
LVTTL RS232 Rx
RST
Reset
MFR1
See note below
OIF
Reserved
L
H edge
LOW
Resets I/O physical interface
Laser off, module in reset
Manufacturers connection only
LVTTL input
For future use
Note:
This pin can be factory configured to provide an external trace tone input. This allows an external sine wave signal to modulate the laser output
power (AM). This input can be used simultaneously with the internal SBS suppression dither function.
This input will accept a signal amplitude between 0 and 1Vpp and has a -3dB frequency bandwidth of approximately 3KHz to 2MHz.
The transfer function is not controlled so that the user must monitor the resulting AM and adjust the input signal amplitude so as to produce
the required modulation depth. This input is internally AC coupled. Absolute maximum input is 3Vpp.
Mechanical Detail (dimensions in mm)
• 14 way Pin Connector designed to mate with Samtec P/N ASP-113466-019 or equivalent.
• Module attached with 4 X M2 screws, clearance hole in ITLA, threaded in user housing.
The module should be mounted to a flat heat sink or thermal pathway for correct device operation. The module thermal
management should ensure that the case temperature does not exceed 75ºC at the worst case end of life dissipation figure
of 5.5 Watts.
5
Data Sheet
Physical Connectivity
Pin Out Table
Pin #
Function
Pin #
Function
1
3V3
2
DIS
3
3V3
4
SRQ
5
GND
6
MS
7
GND
8
TXD
9
-5.2V
10
RXD
11
-5.2V
12
RST
13
OIF
14
MFR1
Customer Support and Handling Recommendations
An iTLA evaluation kit is available which provides a hardware platform to test and characterise the Bookham iTLA. It provides
convenient connection for iTLA power supplies, LED power indicators and a selection of module enable/disable and
software/hardware reset switches. This kit also includes a convenient GUI software applications interface which enables host/iTLA
communications using the OIF MSA recommended packet structure via the RS232 interface. Enabling comprehensive control and
status interrogation.
Please refer to your local sales representative for iTLA evaluation kit availability.
iTLA product support documents are also available on request. The Bookham applications document Handling and Operation
Recommendations for the Bookham Integrable Tunable Laser Assembly (iTLA) D00041-AN, provides recommendations and advice
regarding handling, mounting and operation of the iTLA to enable straightforward integration of the iTLA into a clients’ system card.
6
Data Sheet
Optical Fibre
Fibre Length
1400mm +/- 100mm
Fibre coating
900um split loose tube
Fibre Type
PANDA 9/125 polarization maintaining fibre
Minimum Bend Radius
20mm
Connector
FC-UPC
RoHS Compliance
Bookham is fully committed to environment
protection and sustainable development and has
set in place a comprehensive program for
removing polluting and hazardous substances from
all of its products. The relevant evidence of RoHS
compliance is held as part of our controlled
documentation for each of our compliant products.
RoHS compliance parts are available to order,
please refer to the ordering information section for
further details.
Ordering Information:
TL5000VLJ
FC/UPC connector supplied as standard. This connector is present
for testing purposes only. It is expected to be removed by the
customer to allow connection splicing.
Evaluation Board Available on request
Contact Information
North America
Bookham Worldwide
Headquarters
Europe
Paignton Office
Asia
Shenzhen Office
2584 Junction Ave.
San Jose
CA 95134
USA
Brixham Road
Paignton
Devon
TQ4 7BE
United Kingdom
2 Phoenix Road
Futian Free Trade Zone
Shenzhen 518038
China
• Tel: +1 408 919 1500
• Tel: +44 (0) 1803 66 2000
• Fax: +1 408 919 6083
• Fax: +44 (0) 1803 66 2801
• Fax: +86 755 33305805
+86 755 33305807
• Tel: +86 755 33305888
Important Notice
Performance figures, data and any illustrative material
provided in this data sheet are typical and must be
specifically confirmed in writing by Bookham before
they become applicable to any particular order or
contract. In accordance with the Bookham policy of
continuous improvement specifications may change
without notice. The publication of information in this
data sheet does not imply freedom from patent or other
protective rights of Bookham or others. Further details
are available from any Bookham sales representative.
www.bookham.com
sales@bookham.com
INVISIBLE LASER RADIATION
DO NOT VIEW DIRECTLY
WITH OPTICAL INSTRUMENTS
CLASS 1M LASER PRODUCT
INVISIBLE LASER RADIATION –
AVOID DIRECT EXPOSURE TO BEAM
MAX POWER 28mW / +14.5dBm
WAVELENGTH > 1525 nm
CLASS IIIb LASER PRODUCT
REFERENCE IEC 60825-1 Edition 1.2
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THIS PRODUCT COMPLIES WITH 21CFR 1040.10
ISO14001:1996 EMS 504193
TL9000 Rev 3.0 (ISO9001:2000)
FM15040
BH13343 Rev 1.0 January 2007
©Bookham 2005. Bookham is a registered trademark of Bookham Inc.