Directly modulated Laser (DML) for uncooled 40Gb/s and cooled 106 Gb/s array

At a Glance

  • High speed DML transmitter for direct detection schemes

Technical Background

  • Active layers based on InAlGaAs multi quantum wells
  • Aluminum free output facets

Features

  • Wavelength in O-band, possible in C-band
  • Uncooled 40 Gbps DML (PPR):
    Operation temperature: 20 °C to 70 °C:
    Modulation Bandwidth > 30 GHz @ 70 °C
    Output power > 10 mW
    Threshold current < 15 mA
  • Cooled 106 Gbps DML Array:
    4 Channel
    Operation temperature: 20°C
    Modulation Bandwidth ~ 55 GHz
    Output power > 20 mW
    Threshold current < 10 mA

Applications

  • Telecom/Datacom
  • Analog photonic transmitter
  • Gas sensing
Uncooled 40 Gbps DML
Cooled 106 Gbps DML array
Example of 40 Gbps NRZ optical eyes
Example of 106 Gbps PAM4 optical eyes