Integrated Coherent Transmitter
The CT6100AAA is a C-band (196.1 to 191.15GHz) Flex-Tuneable transmitter Gold Box, developed as an enabling source for Analogue & Digital module integration, or line-card developments.
The transmitter comprises full-band narrow linewidth DSDBR tuneable laser, and dual-Cartesian Mach-Zehnder modulator, fabricated on Indium Phosphide, and encapsulated with polarisation multiplexer and coupling optics inside a fully hermetic package.
A single InP laser source with integrated SOA is used to derive both the local oscillator and Mach-Zehnder transmitter input signal, via internal bulk optic beam splitter. The SOA provides adjustment to maintain the desired LO power
Monolithically integrated SOAs are integrated on input and output arms of the modulator, enabling power to be balanced on each input polarisation, and overall transmit power to be adjusted.
Output shuttering is enabled via an independent output VOA. This permits the LO to be maintained regardless, as required for certain application configurations
100Gb/s and 200Gb/s for Data Centre Metro & Long Haul (from BPSK to DP-16QAM)
Supports coherent DP-QPSK & DP-16QAM modulation formats up to 32GBaud symbol rates
High power narrow line-width full-band Tuneable laser chip with SOA for power trimming and shuttering
Etalon for wavelength stabilization to ITU-T FLEX grid
InP Mach-Zehnder DP-QPSK modulator chip with integrated pre and post modulation SOA’s
High speed differential co-planar data interface, 50Ω per arm, with integrated bias-T
Log amplifiers for X and Y outputs (enabling control functionality)
Full Differential RF interface with GSSG
Wide operating case temp range -5°C to +75°C (to 80°C short term)
Qualified to Telcordia GR-468-CORE
RoHS 6/6 compliant