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Optoelectronic Devices and Integration

Lumentum High-Bandwidth Coherent Driver Modulator (HB-CDM) 64Gbaud Symbol Rate

Lumentum High-Bandwidth Coherent Driver Modulator (HB-CDM) 69Gbaud Symbol Rate

Lumentum HB-CDM is implemented in a small form factor (12 x 4.8 x 24.8 mm) package which co-packages a linear, quad-channel, differential 64 GBaud driver with an InP-based Mach-Zehnder (MZ) quadrature modulator chip. It provides efficient coherent multi-level modulation formats, such as DP-QPSK, DP-16QAM and DP-64QAM, to support coherent transmission up to 64 GBaud.

Being compliant to the OIF’s Implementation Agreement OIF-HB-CDM-01.0 “High Bandwidth Coherent Driver Modulator” (www.oiforum.com), Lumentum HB-CDM guarantees a minimum 3dB EO bandwidth of 40 GHz and can operate in an extended temperature range of -5°C to 80°C. Lumentum HB-CDM is optimally designed to be used in 400/600 Gbps coherent transceiver modules and in line-card applications which leverage its small size, high bandwidth and low power dissipation. The integration of driver and modulator into the same package provides advantageous signal integrity, low PCB’s space requirements, easy mounting, and single-component management.
The RF driver is digitally controlled through a Serial Peripheral Interface (SPI) which allows per-channel gain and peaking control, peak detectors reading, die temperature reading, and squelch functions.

Key Features:
■C-band, L-band operating wavelength ranges available
■OIF-HB-CDM-01.0 compliant
■Minimum 3 dB bandwidth of 40 GHz
■Small form factor: 12 x 4.8 x 24.8 mm
■InP IQ Mach-Zehnder modulator co-packaged with quad, differential, linear driver
■SPI control and analog pilot tone
■Max power dissipation: 4.5W (at 80°C)
■RoHS compliant

Applications:
■Up to 600 GBps pluggable modules and line-cards
■Long haul and metro/regional transport and datacenter interconnect