GigOptix, a provider of optical components and semiconductor, has recently declared its new generation GX3122B dual channel linear Transimpedance Amplifier (TIA) is now available for sampling. It is compatible with 40Gb/s DWDM coherent optical receivers.
The GX3122B leverages GigOptix’s previous TIA designs. It includes two balanced linear TIAs, which are incorporated on a silicon germanium die. The weak signals received from photodiodes are amplified by the device, thereby activating the Analog to Digital Signal Processor (DSP) and Digital Converters (ADC) in a coherent optical system. Low Total Harmonic Distortion (THD) over a large dynamic range allows the GX3122B design to promote exceptional signal fidelity. It can therefore manage the high AC and DC currents found in coherent receivers.
GigOptix’s GX3122B includes the following features:
- Lower than 5% THD
- Highly integrated solution with dual channel TIAs to minimize cost and system complexity
- Peak detection function
- High differential gain of 5K Ohm
- High linear gain of dynamic range more than 30dB
- Input power monitor
- Manual or automatic gain control options
- Reduces power consumption
GigOptix’s VP and General Manager of the Optics Product Line, Dr. Raluca Dinu said that the company has provided a novel solution for the booming 40 G coherent market. In response to the growing demand for bandwidth across the network through smartphones and application transfer from the desktop into the cloud, network operators have enhanced their link capacity to manage the growing traffic. With silicon germanium, the GX3122B ensures to be a versatile and cost-effective solution. The GX3122B will ultimately support and promote the 40 G coherent optical market in its development.
Ovum’s latest report states that the 40 G coherent optical system will increase at a CAGR of 64% by 2016.