26 February 2018
NeoPhotonics makes available matched suite of 64GBaud coherent optical components for 1.2T applications
© Semiconductor Today Magazine / Juno PublishiPicture: Disco’s DAL7440 KABRA laser saw.
NeoPhotonics Corp of San Jose, CA, USA (a vertically integrated designer and manufacturer of hybrid photonic integrated optoelectronic modules and subsystems for high-speed communications networks) says that it is now shipping (to multiple customers) its suite of 64GBaud optical components for coherent systems operating at 600G and 1.2T.
The suite consists of three critical optical components: a 64GBaud CDM (coherent driver modulator) plus a 64GBaud ICR (coherent intradyne receiver) and an ultra-narrow linewidth tunable laser. These components work together to enable users to implement single-channel 600G or dual-channel 1.2T data transmission over datacenter interconnect (DCI) distances of 80km. The components also support 400G over metro distances of 400-600km using 64GBaud and 16 QAM or 200G over long-haul distances of greater than 1000km using 64GBaud and QPSK
NeoPhotonics says that system designers depend on its 64GBaud coherent product suite to achieve higher data rates over a given distance. 64GBaud components double the symbol rate over standard 100G (32GBaud) coherent systems. Higher symbol rates increase data capacity while maintaining superior optical signal-to-noise ratio (OSNR), spectral density and reach performance. Higher-order modulation schemes such as 16 QAM and 64 QAM improve spectral efficiency, but require a higher OSNR and benefit from the ultra-narrow linewidth provided by NeoPhotonics’ external cavity tunable laser. These three components are available in compact form-factor packages suitable for CFP2 pluggable modules and compact daughter cards.
- 64GBaud CDM: NeoPhotonics’ 64GBaud polarization-multiplexed quadrature coherent driver modulator (CDM) is shipping in limited availability and features a co-packaged indium phosphide (InP) modulator with a linear, high-bandwidth differential driver in a compact package designed to be compliant with the anticipated OIF Implementation Agreement. Co-packaging the InP IQ modulator with the driver enables an 85% reduction in line-card board space compared with equivalent lithium niobate solutions. Further, this facilitates transceiver applications up to 600GBps on a single wavelength for next-generation transport modules.
- 64GBaud Micro-ICR: NeoPhotonics’ Class 40 high-bandwidth micro-intradyne coherent receiver (Micro-ICR) is in volume production and is designed for 64GBaud symbol rates, doubling the RF bandwidth of standard 100G ICRs. The 64GBaud Micro-ICR supports higher-order modulation such as 64 QAM. The compact package is designed to be compliant with the OIF Implementation Agreement OIF-DPC-MRX-02.0.
- Low Profile Micro-TL: NeoPhotonics’ ultra-narrow-linewidth external cavity tunable laser has been proven in volume production and is now configured in a smaller, lower-profile package, which is designed to meet the stringent requirements for packaging density in pluggable modules. The firm claims that the external cavity laser design has a significantly narrower linewidth than competing designs, which is especially advantageous for higher-order modulation formats. The laser is available in a compact-package integrable tunable laser assembly (iTLA) form factor designed to be compliant with the OIF Implementation Agreements OIF-MicroITLA-01.1 and OIF-ITLA-MSA-01.3.
“All three elements of our suite of optical components for 600G and 1.2T are now available and shipping to customers, allowing them to take advantage of the performance of all three elements to optimize their system performance,” says chairman & CEO Tim Jenks. “We ensure that each element is designed to work seamlessly with the others and offer our customers a complete optical solution, both increasing performance and reducing development time,” he adds.
NeoPhotonics is exhibiting its suite of coherent components for 600G and 1.2T in booth 3322 at the Optical Networking and Communication Conference & Exhibition (OFC 2018) in San Diego (13-15 March), along with its broad family of products for high-speed applications.