Discovery Semiconductors manufactures photodetectors and balanced photoreceivers for 10 Gb, 40Gb, and 100 Gb applications.

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20 GHz Linear Balanced Photoreceivers with Optional CDR

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Description:

The DSC-R405 is an extremely linear PIN + Amplifier balanced optical receiver suited for a variety of digital and analog applications. The R405 offers a linear response to > 0 dBm optical input, > 0.6Vp-p of linear output voltage, +5dBm of RF output power and a differential conversion gain of 300 V/W. The R405 is available in two bandwidth versions (14 and 20GHz) and three package choices: single-ended K-connector, differential GPPO, and a miniature surface mount package with CPW (coplanar waveguide) RF outputs, and utilizes Discovery's high-reliability InGaAs photodiode technology.

Balanced Photoreceivers with 14 GHz Bandwidth or 20 GHz Bandwidth     Balanced Photoreceivers with 14 GHz Bandwidth or 20 GHz Bandwidth    DSCR405 or DSCR405ER Balanced Optical Receiver Lab Buddy

Fig1: DSC-R405 Linear Balanced Photoreceivers with Lab Buddy

DSC-R405 10.7 Gb/s RZ-DPSK Eye Diagram

Fig2: DSC-R405 10.7 Gb/s RZ-DPSK Eye Diagram
In: -3 dBm average optical power per photodiode
Out: 400 mVp-p

Salient Features:
  • Industry leading 10G OSNR performance
  • Linear gain to > 0 dBm optical input
  • Linear single-ended output voltage of > 0.6Vp-p
  • Wide RF bandwidth of 14 or 20 GHz
  • High Responsivity at 1310nm, 1550nm & L-band
  • High Dynamic Range
  • Well-matched fiber lengths, responsivity & RF response
  • Low optical PDL @ 1550nm (typically 0.05dB)
  • K-connector, GPPO or surface mount package options
  • Meets GR-468 reliability standard
  • Clock and Data Recovery (CDR)
Applications:
  • DPSK/DQPSK: Differential Phase/Polarization Shift Keying or Differential Quadrature Phase Shift Keying
  • Rapid Doppler-shift LIDAR measurements
  • Coherent Lightwave Systems
  • RF over fiber (RoF)
  • OFDM
  • Laser RIN cancellation
Available Models:
  • DSC-R405 - Linear Balanced Photoreceivers 14 GHz Bandwidth with Optional CDR
  • DSC-R405ER - Linear Balanced Photoreceivers with 20 GHz Bandwidth
DSC-R405 and DSC-R405ER Typical Frequency Response Curves and Common Mode Rejection

Fig3: Typical Frequency Response Curves & Common Mode Rejection

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