Transcript
BR8401 40Gb/s DPSK Modulator The BR8401 is a high bandwidth polymer modulator designed for 40G long-haul and ultralong-haul optical transponders. It can be used for NRZ, ODB, and DPSK modulation format. The BR8401 is a compact solution targeted for Small Form Factor (SFF) 300 pin transponders. The BR8401 includes essential features such as high temperature operation and reliability, high frequency GPPO connectors, excellent optical performance, electrical signals accessible from one side, and integrated photodiode monitor.
Applications
40Gb/s optical transmission systems 39.8Gb/s to 44.6Gb/s DPSK DWDM optical transmission equipment
Features
Low driving voltage -5 to 85°C temperature operation Integrated PD monitor for precision bias control Compatible with full band tunable lasers Zero chirp GPPO input connector
Ordering Information Part Number
Device Diagram
BR8401
Temperature Dimensions Range L x W x H (mm) -5°C to +85°C
106 x 12 x 8
Figure 1 - Device Diagram
Page 1
Doc BR8401_ADS © 2016 BrPHOTONICS
BrPhotonics Produtos Optoeletrônicos S.A.
BrPhotonics Produtos Optoeletrônicos S.A. www.brphotonics.com
Rua Dr. Ricardo Benetton Martins, s/n, Parque II do Polo de Alta Tecnologia, CEP 13086-902, Campinas – SP, Brazil BrPhotonics LTDA cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a BrPhotonics product. No circuit patent licenses are implied. BrPhotonics reserves the right to change the circuitry and specifications without notice at any time.
Advanced Datasheet
General Description
BR8401
40Gb/s DPSK Modulator
Absolute Maximum Ratings
Advanced Datasheet
Exceeding the maximum ratings may cause damage to this product or lead to a reduction in reliability. These are solely stress ratings and functional operation of the device at these or any conditions beyond those indicated in Operating Characteristics table (page 2) is not implied. Exposure to Absolute Maximum Rated conditions (page2) for extended periods may affect device reliability. Not following the biasing sequence in Operational Setup (page 5) may damage the device.
Symbol Vin Opticalin Ibias Vbias TStorage HStorage TOperating PDRV PDFC Notes: 1.
Parameter RF Input Voltage Optical Input Power DC Bias Current DC Bias Voltage Storage Temperature Range Storage Humidity Range Operating Temperature Range Photodiode reverse Voltage Photodiode forward Voltage
Conditions
Min
Note 1 -40 0 -5 15
Max 12 50 120 0.3 85 85 85 8
Units Vpp mW mA V °C % °C V mA
Vbias is the voltage on the bias port. Note that at the same time the Ibias should not exceed limit.
Operating Characteristics At 25°C temperature, over process and bias
Symbol Optical BR λ OIL ER Optical IN B/W Electrical S11 Vπ Vπ Ibias Rin P
Parameter (note)
Conditions
Min
Bit Rate Wavelength Optical Insertion Loss Extinction Ratio Optical Input Power Optical Bandwidth
Minimum guaranteed C+L Band Fiber to Free Space At low frequency (10kHz) Note 1 -3dB relative to 1.0GHz
44.6 1520
Electrical return loss (S11) Drive voltage Drive voltage DC Bias Current Input Impedance Photodiode responsivity
130MHz ≤ f ≤ 30GHz At low frequency (10kHz) At 40 Gbps NRZ (Notes 2,3)
Typ
6 20
Max
Units
1590 8 20
25
30
10 2.4 3.5 120 0.9
50 5.0
Notes 1. Maximum driving voltage to achieve 12dB ER for 44.6Gb/s signal. 2. NRZ requires Vπ.
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Doc BR8401_ADS © 2016 BrPHOTONICS
BrPhotonics Produtos Optoeletrônicos S.A.
BrPhotonics Produtos Optoeletrônicos S.A. www.brphotonics.com
Rua Dr. Ricardo Benetton Martins, s/n, Parque II do Polo de Alta Tecnologia, CEP 13086-902, Campinas – SP, Brazil BrPhotonics LTDA cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a BrPhotonics product. No circuit patent licenses are implied. BrPhotonics reserves the right to change the circuitry and specifications without notice at any time.
Gb/s Nm dB dB mW GHz dB V V mA Ohm mA/W
BR8401
40Gb/s DPSK Modulator
Connectors and Fiber Specifications Description GPPO – full detent Lead Pins PMF-28 SMF-28 (Note 1) FC/PC FC/PC
Pin Assignment
Pin 1 2 3 4 5 6 7 8
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Name NC DATA NC Ibias Bias GND PD Anode PD Cathode NC
Doc BR8401_ADS © 2016 BrPHOTONICS
BrPhotonics Produtos Optoeletrônicos S.A.
Description NC Data RF NC Bias current source Bias Ground Photodiode Anode Photodiode Cathode NC
BrPhotonics Produtos Optoeletrônicos S.A. www.brphotonics.com
Rua Dr. Ricardo Benetton Martins, s/n, Parque II do Polo de Alta Tecnologia, CEP 13086-902, Campinas – SP, Brazil BrPhotonics LTDA cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a BrPhotonics product. No circuit patent licenses are implied. BrPhotonics reserves the right to change the circuitry and specifications without notice at any time.
Advanced Datasheet
Name RF Input Port Bias and PD Connector Input Fiber Output Fiber Input Connector Output Connector
BR8401
40Gb/s DPSK Modulator
Package drawing
Advanced Datasheet
Figure 3 - Top View
Figure 4 - Side View
Figure 5 – Bottom View
Dimensions L x W x H = 38.00 x 11.75 x 7.71mm (package dimensions) L x W x H = 105.8 x 11.75 x 7.71mm (including fiber boots) Fiber length = 1m
Page 4
Doc BR8401_ADS © 2016 BrPHOTONICS
BrPhotonics Produtos Optoeletrônicos S.A.
BrPhotonics Produtos Optoeletrônicos S.A. www.brphotonics.com
Rua Dr. Ricardo Benetton Martins, s/n, Parque II do Polo de Alta Tecnologia, CEP 13086-902, Campinas – SP, Brazil BrPhotonics LTDA cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a BrPhotonics product. No circuit patent licenses are implied. BrPhotonics reserves the right to change the circuitry and specifications without notice at any time.
BR8401
40Gb/s DPSK Modulator
Operational Setup
Required Biasing Sequence 1. Connect pins 4 & 5 to current source. 2. Connect pins 6 & 7 to PD monitoring or automatic bias control. 3. Apply single end RF to Pin 2. 4. For NRZ, bias the modulator at Quadrature. For DPSK, bias the modulator at Null.
Figure 6 – Typical Application
Revision History Revision
Date
Change
1.0
06/14/2015
Change company format
2.0
11/01/2016
Minor text revision.
Page 5
Doc BR8401_ADS © 2016 BrPHOTONICS
BrPhotonics Produtos Optoeletrônicos S.A.
BrPhotonics Produtos Optoeletrônicos S.A. www.brphotonics.com
Rua Dr. Ricardo Benetton Martins, s/n, Parque II do Polo de Alta Tecnologia, CEP 13086-902, Campinas – SP, Brazil BrPhotonics LTDA cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a BrPhotonics product. No circuit patent licenses are implied. BrPhotonics reserves the right to change the circuitry and specifications without notice at any time.
Advanced Datasheet
1. To avoid irreversible damage, do not exceed Bias Current Absolute Maximum Rating of 120mA during operation. 2. RF inputs require AC coupling, as DC voltage will not provide steady state response.
