Data
sheet
www.bookham.com Thinking optical solutions
10 Gb/s APD
Preamp Receiver
The module consists of an APD photodetector, a low noise
preamplifier, a connectorized single-mode fibre pigtail
(for coupling light into the photodetector), an SMP electrical
output connector, and an hermetic metal package.
Optimized for use in 10 Gb/s Metro applications using
NRZ Modulation with or without FEC.
www.bookham.com Thinking optical solutions
Features
•High Sensitivity
•Low Capacitance high speed
InGaAs APD detector
•High Performance
preamplifier chip
•Single polarity power supply
•Hermetically sealed
•Bellcore GR468-CORE Controlled
Environment compliant
•Single mode fibre tail
•MSA Compliant
Applications
•Long reach STM16/OC48
receivers
Performance Symbol Min Nom Max Unit
Optical Sensitivity 223 -1 BER< 10-10 (4), m=10 Sens -26.5 -25 dBm
High frequency -3dB corner (2), m=10 F3dB 7.5 8.1 GHz
Deviation from linear phase (d.c-6GHz) -10 +10 deg
Return loss S22 (400KHz to 12GHz) -12 -5 dB
Optical overload 223 -1 BER< 10-10 Psat -3 -1 dBm
APD breakdown voltage temp coefficient Tvbr .050 0.056 .061 V/°C
APD breakdown voltage Vbr 25 40 V
Amplifier bias voltage (Positive) Vcc 7.6 8 8.4 V
Dark current at 90% of Vbr ld 100 nA
Current consumption lcc 110 120 mA
Transimpendance gain (2,3) TZG 400 500 650 Ohms
Characteristics
TC = 25 °C unless otherwise specified.
1) Optical wavelength is in the 1300nm region and between 1525 - 1575nm
2) Load impedance is 50Ω(AC coupled) with a return loss > 20dB, up to 20GHz.
3) Excludes APD responsivity.
4) Measured with 10 Gb/s NRZ PRBS data and no FEC.
Parameter Symbol Min Max Unit
Amplifier bias voltage Vcc -0.5 8.5 V
Operating temperature (1) Top 0 70 °C
Storage temperature (2) Tstg -40 85 °C
Maximum Transient Optical Input Power Ppo 10 dBm
APD bias voltage Vbr 40 V
Fibre bend radius 35 mm
Absolute Maximum Ratings
Class 1 ESD precautions must be observed when handling these devices
1) The operating temperature is defined as the temperature of the module case.
2) The rating is referred to ambient temperature.
3) The optical level that causes no damage to the module. However, the electrical and optical performance
specified in this document may not be guaranteed.
4) The receiver may be damaged if not powered up and powered down in the correct order. When powering
up the device, turn on APD bias (Vapd) first, then positive supply (Vcc). Power down in reverse order.
5) Vbr of individual device at given operating temperature is not to be exceeded.
Pin # Function
1 Vapd (+ve)
2 Case ground
3 Vcc (+ve)
4 Case Ground
5 Case Ground
6 Case Ground
7 Case Ground
8 Thermistor
NTC thermistor R25 °C = 10K Ω+/- 3%
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Circuit Schematic and Dimensions
500 Ω
10 nF
InF
Vpd
100 nF
1 Ω
InF
Vcc
to
Rth
(10kΩ @ 25C)
RF out
Figure 1: Schematic Diagram
Figure 2: Typical eye diagram measured at 10 Gb/s PRBS NRZ data.
Figure 3: Outline Diagram
Certificate No. FM 15040
Certificate No. EMS 35100
CAUTION
STATIC SENSITIVE DEVICE
OBSERVE PRECAUTIONS
www.bookham.com REV 1 Feb 2003
© Bookham Technology 2003 Bookham & ASOC are registered trademarks of Bookham Technology plc
REV 1 Feb 2003
© Bookham Technology 2003 Bookham & ASOC are registered trademarks of Bookham Technology plc
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Sales@bookham.com
Important Notice
Bookham Technology has a policy of
continuous improvement, as a result
certain parameters detailed on this flyer
may be subject to change without notice.
If you are interested in a particular product
please request the available from any
Bookham Technology sales representative.
