Get to Know 10G BiDi SFP+ Optical Active Transceiver Module

10Gbps SFP+ Bi-Directional Transceiver, 10km Reach 1270/1330nm TX / 1330/1270 nm RX 

Features 
 Supports 9.95Gb/s to 10.3Gb/s data rates 
 Simplex LC Connector Bi-Directional SFP+ Optical Transceiver 
 Single 3.3V Supply 
 Up to 10km on 9/125um SMF 
 A:1270nm DFB Laser transmitter,1330nm receiver B:1330nm DFB Laser transmitter,          1270nm receiver 
 Compliant with IEEE 802.3ae 10GBASE-LR and 10GBASE-LW 
 SFP+ MSA SFF-8431 Compliant 
 Digital Diagnostic SFF-8472 Compliant 
 RoHS compliant and Lead Free 
 Operating case temperature: Standard: 0 ~ 70 °C 

Applications 
 10GBASE-LR at 10.3125Gbps 
 10GBASE-LW at 9.953Gbps 
 Other Optical Links 

Product description 
The GBP-XXXX192-LRC series single mode transceiver is small form factor pluggable module for duplex optical data communications such as 10GBASE-LR/LW defined by IEEE 802.3ae. It is with the SFP+ 20-pin connector to allow hot plug capability. The GBP-XXXX192-LRC module is designed for single mode fiber and operates at a nominal wavelength of 1270nm or 1330nm; The transmitter section uses a multiple quantum well DFB, which is class 1 laser compliant according to International Safety Standard IEC-60825.

Solution of Compact Bidi SFP

The Gigalight 2-channel Compact Bidi SFP module, also known as Compact SFP, integrates two IEEE 802.3ah 1000BASE-BX10-D interfaces in one SFP module. The 2-channel Compact Bidi SFP always connected to two 1000BASE-BX10-U interfaces over two single strands of standard SMF with an operating transmission range up to 10km at least.

The Gigalight 2-channel Compact Bidi SFP module is designed to connect to any standard-based Customer Premises Equipment (CPE) in FTTx links.

Mobile Wireless Back Haul-Gigalight SFP/SFP+ Transceiver Modules Ideal for Wireless and Other Base Station Applications

The Common Public Radio Interface specification, or CPRI (pronounced sip-ri) for short, is a standard for wireless backhaul. CPRI was a major initiative formed in 2003 by several well-known telecommunication companies: Ericsson, Huawei, NEC, Nortel, Nokia Siemens Networks, and Alcatel Lucent. The CPRI committee set out to define a new standardized interface for the interconnect point between the Radio Equipment (RE) and the Radio Equipment Controller (REC) within a base station.

Gigalight has several SFP/SFP+ transceiver modules ideal for wireless and other base station applications.

Single Fiber Single Wavelength Solution

The Principle of Single Wavelength BiDi Transceiver

The single wavelength, bi-directional(SWBiDi) transceiver uses one fiber and one wavelength for a simultaneous communication in both directions. It can be widely used in the optical transport networks, access networks, wireless back-haul networks, and private transmission networks since it can save in the capital expenditure and the operational expenditure.

Fig.1 The principle of SWBiDi

Comparison of Various Transmission Technologies

Duplex transceiver uses two fibers, one for upstream, the other for downstream. The cost is high.

Two wavelengths BiDi transceiver uses one fiber, but two wavelengths for a simultaneous communication in both directions. Transceivers at two ends have to be different, which increases the capital and operational cost. In addition, in a WDM-BiDi system, each channel cannot have a 100% dedicated bandwidth for both directions simultaneously since all the subscribers must share a common wavelength in one direction.

SWBiDi transceiver uses one fiber and one wavelength for a simultaneous communication in both directions. All the transceivers are identical. The cost is low.

Table 1 Comparison of various transmission technologies

Note.1: If use APC connector, Return Loss can be mitigated, and the transmission distance can be longer than 80km.

Examples of SWBiDi Applications

The data rate of SWBiDi transceiver can be from 155Mb/s to 10Gb/s. The transmission distance can be from 2km to 40km. If use APC connector, the distance can be longer than 80km.

Fig.2  WDM SWBiDi

Gigalight Attends SC15 in Austin with High-speed Optical Communication Devices

Gigalight is attending SC15 exhibition in Austin, TX, USA. Now let's have a quick look at what optic-communication products Gigalight introduces at this famous technology expo: 

1. 100G & 120G optical transceiver

2. 100G QSFP28 Active Optical Cable

3. Direct Attach Cables

4. Gigalight 40G & 56G & 100G optical modules

5. Gigalight 40G & 56G & 120G AOC

6. QSFP28 Loopback

Now don't forget to visit Gigalight booth if you'd attend SC15: #3116. Have a good Monday!

Get to Know Gigalight 8.5G SFP+ Optical Transceiver Module

Gigalight 8G SFP+ series transceiver compliant with #fiber channel such as 8G/4G/2G, digital diagnostic functions are available via an I2C series bus specified in the SFP MSA SFF-8472. Today, I'd like to introduce 8.5Gbps 300m SFP+ Optical Transceiver GPP-858G-SRC.

Products Features

* Optical interface compliant to IEEE 802.3ae 

* Electrical interface compliant to SFF-8431  

* Hot Pluggable  850nm VCSEL transmitter, PIN photo-detector 

* Maximum link length of 300m on 2000MHz/km MMF 

* Low power consumption  Maximum link length of 300m on 2000MHz/km MMF 

* All-metal housing for superior EMI performance 

* Advanced firmware allow customer system encryption information to be stored in transceiver 

* Cost effective SFP+ solution, enables higher port densities and greater bandwidth 

* Operating case temperature: Standard: 0 to +70°C Industrial: -40 to +85°C 

* RoHS 6 compliant (lead free)

Applications  

Tri Rate 1.0625 / 2.125 / 4.25/8.5Gbp/s Fibre Channel 

Other optical links Product description This 850 nm VCSEL 8.5 gigabit SFP+ transceiver is designed to transmit and receive optical data over 50/125 μm or 62.5/125 μm multi-mode optical fiber (Table 1).

The #SFP+ SR module electrical interface is compliant to SFI electrical specifications. The transmitter input and receiver output impedance is 100 Ohms differential. Data lines are internally AC coupled. The module provides differential termination and reduce differential to common mode conversion for quality signal termination and low EMI. SFI typically operates over 200 mm of improved FR4 material or up to about 150mmof standard FR4 with one connector. The transmitter converts 8.5Gbit/s serial PECL or CML electrical data into serial optical data compliant with the FC standard. An open collector compatible Transmit Disable (Tx_Dis) is provided. A logic “1,” or no connection on this pin will disable the laser from transmitting. A logic “0” on this pin provides normal operation. The transmitter has an internal automatic power control loop (APC) to ensure constant optical power output across supply voltage and temperature variations. An open collector compatible Transmit Fault (TFault) is provided. TX_Fault is a module output contact that when high, indicates that the module transmitter has detected a fault condition related to laser operation or safety. The TX_Fault output contact is an open drain/collector and shall be pulled up to the Vcc_Host in the host with a resistor in the range 4.7-10 kΩ. TX_Disable is a module input contact. When TX_Disable is asserted high or left open, the SFP+ module transmitter output shall be turned off. This contact shall be pulled up to VccT with a 4.7 kΩ to 10 kΩ resistor The receiver converts 8.5Gbit/s serial optical data into serial PECL/CML electrical data. An open collector compatible Loss of Signal is provided. Rx_LOS when high indicates an optical signal level below that specified in the relevant standard. The Rx_LOS contact is an open drain/collector output and shall be pulled up to Vcc_Host in the host with a resistor in the range 4.7-10 kΩ, or with an active termination. Power supply filtering is recommended for both the transmitter and receiver. The Rx_LOS signal is intended as a preliminary indication to the system in which the SFP+ is installed that the received signal strength is below the specified range. Such an indication typically points to non-installed cables, broken cables, or a disabled, failing or a powered off transmitter at the far end of the cable.

For more details, or any question/inquiry, welcome to contact us! 

What is Gigalight 16G FC SFP+ SR Optical Module?

This 850 nm VCSEL 14.025 Gigabit/s SFP+ transceiver is designed to transmit and receive optical data over 50/125 μm or 62.5/125 μm multi-mode optical fiber. It has the following features:

* Optical interface compliant to IEEE 802.3 ae 

* Electrical interface compliant to SFF-8431 

* Hot Pluggable

* Dual CDR @ 14.025Gbps

* 850nm VCSEL transmitter, PIN photo-detector 

* Maximum link length of 150m on 2000MHz/km MMF 

* Low power consumption 

* Maximum link length of 150m on 2000MHz/km MMF 

* All-metal housing for superior EMI performance 

* Advanced firmware allow customer system  encryption information to be stored in transceiver 

* Cost effective #SFP+ solution, enables higher port densities and greater bandwidth 

* Operating case temperature: Standard : 0 to +70°C 

* RoHS 6 compliant (lead free) 

The SFP+ SR module electrical interface is compliant to SFI electrical specifications. The transmitter input and receiver output impedance is 100 Ohms differential. Data lines are internally AC coupled. The module provides differential termination and reduce differential to common mode conversion for quality signal termination and low EMI. SFI typically operates over 200 mm of improved FR4 material or up to about 150mm of standard FR4 with one connector. The transmitter converts 14.025 Gbit/s serial PECL or CML electrical data into serial optical data compliant with the FC standard. An open collector compatible Transmit Disable (Tx_Dis) is provided. A logic “1,” or no connection on this pin will disable the laser from transmitting. A logic “0” on this pin provides normal operation. The transmitter has an internal automatic power control loop (APC) to ensure constant optical power output across supply voltage and temperature variations. An open collector compatible Transmit Fault (TFault) is provided. TX_Fault is a module output contact that when high, indicates that the module transmitter has detected a fault condition related to laser operation or safety. The TX_Fault output contact is an open drain/collector and shall be pulled up to the Vcc_Host in the host with a resistor in the range 4.7-10 kΩ. TX_Disable is a module input contact. When TX_Disable is asserted high or left open, the SFP+ module transmitter output shall be turned off. This contact shall be pulled up to VccT with a 4.7 kΩ to 10 kΩ resistor The receiver converts 14.025 Gbit/s serial optical data into serial PECL/CML electrical data. An open collector compatible Loss of Signal is provided. Rx_LOS when high indicates an optical signal level below that specified in the relevant standard. The Rx_LOS contact is an open drain/collector output and shall be pulled up to Vcc_Host in the host with a resistor in the range 4.7-10 kΩ, or with an active termination. Power supply filtering is recommended for both the transmitter and receiver. The Rx_LOS signal is intended as a preliminary indication to the system in which the SFP+ is installed that the received signal strength is below the specified range. Such an indication typically points to non-installed cables, broken cables, or a disabled, failing or a powered off transmitter at the far end of the cable.

Mechanical Specification

Any interest or question about this module, please email us! 

Gigalight Started Mass Production for 100G CFP-SR10

Abstract: Gigalight announced that of its 100G CFP-SR10 optical modules validated by many customers. Gigalight 100G CFP-SR10 uses its own technology patents multi-mode optical integrated device array platform, launch of 10G VCSEL micro-array, micro-array total 10 transceiver channels, each working rate up to 11.2GB / S, compatible OTU4. Typical over the full temperature (0-70 °) range of sensitivity value -13.1dbm.This product meets the CFP MSA and IEEE specifications 802.3ba, OM3 fiber can transmit 300 meters, OM4 fiber can transmit 400 meters. Use MDIO implemented DDM function diagnostics. Physical port as a standard 24-channel MTP (MPO) high-density optical connectors. the total device power dissipation is 8 watts. Gigalight innovative technology platform enables the product along with high quality with low cost characteristics. The performance and design of this product have reached the leading level. 

Product Features

• Transmission data rate up to 11.2 Gbit/s per channel
• CFP MSA compliant
• Compliant to IEEE 802.3ba specification for 100GBASE-SR10 links
• Up to 11.2 Gbps per channel bandwidth,
• OTU4 compatible
• 10 channels 850nm VCSEL array
• 10 channels PIN photo detector array
• OM3 Multimode Fiber cable of up to 300m and OM4 Multimode Fiber cable of up to 400m
• MDIO digital diagnostic and control capabilities.
• compliant to CFP MSA Management Interface Specification, Draft 1.4
• TX input and RX output CDR retiming
• Hot pluggable electrical interface
• Power class 1 (<8W max)
• Operating case temperature 0°C to +70°C
• 3.3V power supply • RoHS 6 compliant(lead free)