Products

Our QKD offering has two variants: the multiplexed system which can be operated on data carrying fiber, and the long-distance system for the highest possible key rate and range.

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Multiplexed QKD System

Multiplexed QKD System

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Long Distance QKD System

Long Distance QKD System

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Multiplexed QKD System

The Multiplexed QKD system allows operation on data carrying fiber, thereby removing the requirement for costly dark fiber. It uses a quantum channel with wavelength in the telecom O-Band, leaving the C-band free for customer traffic. It can operate in the conventional mode with a fiber pair carrying uni-direction traffic, or with a single fiber carrying bi-direction quantum and classical signals.

Multiplexed QKD System

Key features:

  1. Typical key rate : 40 kb/s for 10 dB loss
  2. Range of up to 70km
  3. Fiber requirement : single or dual fibers
  4. Option to multiplex data in C-band
  5. Efficient BB84 protocol with decoy states and phase encoding
  6. Key failure probability of less than 10-10 equivalent to less than once in 30,000 years
  7. Proprietary self-differencing semiconductor detectors

Long Distance QKD System

The Long Distance QKD System operates with a quantum channel in the telecom C-band for the longest possible range and highest possible secure key rate. It can tolerate limited bandwidths of multiplexed data within the C-band.

Long Distance QKD System

Key Features:

  1. Typical key rate = 300 kb/s for 10dB loss
  2. Range of up to 120km
  3. Two fibers required
  4. Efficient BB84 protocol with decoy states and phase encoding
  5. Key failure probability of less than 10-10     equivalent to less than once in 30,000 years
  6. Proprietary self-differencing semiconductor detectors

Specifications

Product name Multiplexed System Long Distance System
Key Rate (Typical) 40 kb/s @ 10 dB loss 300 kb/s @ 10 dB loss
Range (using ideal SM fiber) Up to 70 km Up to 120 km
Fiber Requirement One or Two Fibers Two Fibers
Multiplexing compatibility Option to multiplex
customer data in C-band
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Key Exchange Protocol Efficient BB84 protocol with decoy states and phase encoding
Security Parameter Key failure probability < 10 -10
Detection Technology Proprietary self-differencing semiconductor detectors
Dimensions Standard 19’’ rack mount, height = 3U
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