Communications and Sensors

Telecommunication Component Characterization

  • High speed detectors need the short 100 fsec pulses of our Mendocino passively mode locked system
  • Higher frequency systems could use the high repetition rate of our Eureka actively mode locked system. Eureka lasers can operate up to 40 GHz right out of the laser, or even up to 640 GHz with our BRM module.
  • 100 Gb/s Ethernet: Our 10 to 25 GHz PSL can be used with a Bit Rate Multiplier
  • Optical clock for OTDM is possible with the high accuracy, low jitter of the Eureka PSL, with repetition rate up to 640 Gb/s using the Bit Rate Multiplier
  • QPSK network transmission can use our high repetition rate Eureka lasers
  • Optical Amplifiers – low dispersion, low distortion, short pulse amplifiers for channel amplification are available with our Coronado line.
  • Narrow Band Amplification is also possible with our Coronado line.
  • DWDM metro – high frequency as source or clock with Eureka, amplified with Coronado
  • Low Jitter High Speed Optical Sampling – low jitter…Mendocino for short pulses; Eureka for high frequency
  • Optical Switching - Mendocino for short pulses; Eureka for high frequency

Ultrafast Sampling Scope

Ultra-broad bandwidth sampling scopes are an important tool to characterize the transmission behaviors of optical telecommunication networks. Unlike electrical sampling scopes where the bandwidth is limited by the electronic component used, optical sampling scope is to measure ultra-high speed optical pulse waveform by using a sub-picosecond optical pulse generated with a passively mode-locked fiber laser and the nonlinear optical technology with the sum-frequency (SF) light generation. Commercial optical sampling scopes can analyze higher than 500GHz pulse streams.

Calmar’s unique L-band and C-band fiber laser modules are the preferred devices for optical sampling scopes due to their operation wavelength selection, low timing jitter, shock resistance, and small form factor.

Femtosecond fiber lasers are used for A/D conversion, high speed detector characterization, high speed testing equipment calibration and so on.

For high energy and shortest pulse width use Mendocino, for high repetition rate and higher average power, use Eureka. The repetition rate can be further increased to as high as 640 GHz by combining a 40 GHz Eureka laser with a Bit Rate Multiplier.