Products (all with details)

TeraTone Low Noise Frequency Comb


Narrow-linewidth, high-OSNR, coherent tone bank with 100-GHz tone spacing


The TeraTone™ low-noise frequency comb is the first multi-wavelength source providing more than 100 carriers over the continuous C+L band with inherent low phase noise on all of the carriers. Driven by patented technology, the TeraTone low-noise frequency comb is a high-performance, energy efficieny source for telecomm and datacom systems, particularly for coherent modulation schemes.

High OSNR across entire C+L


Carriers can be projected over any ITU channel grid, with kHz-­level linewidth and 1000‐fold better frequency stability than standard telecom-grade laser sources. The integrated control hardware and computer application embedded in each TeraTone module guarantee turn-key and 24/7 unsupervised operation.

Outperforms typical coherent sources

Technical specifications

The nominal optical specifications of TeraTone™ low-noise frequency comb are given below:
  • Wavelength: 1530-1605 nm
  • Tone frequency spacing: 100 GHz
  • Number of tones ≥ 100
  • Output power: 10 dBm per tone
  • Spectral flatness < 8 dB
  • Linewidth: 10 kHz
  • Frequency stability ≤ 10 MHz
  • Optical signal-to-noise ratio ≥ 45 dB0.1nm
  • Relative intensity noise ≤ -140 dBc/Hz
Additional options and features of the TeraTone™ comb include:
  • Tone frequency spacing from 25-400 GHz
  • Customizable spectral flatness
  • Customizable power per tone
  • Included software for monitoring and control
  • Turn-key operation

QuantoPhase Shearing Wavefront Sensor


High-resolution sampling at an unbeatable price – $4,999


The QuantoPhase™ Digital Shearing Wavefront Sensor provides precision wavefront sensing solutions for optical metrology and laser beam characterization. Our patented wavefront sensing technology provides robust and affordable devices with customized wavelength range with the lowest cost per sampling pixel: $4,999 for 512 x 512 sampling.


QuantoPhase™ Digital Shearing Wavefront Sensors are based on a novel, patented computational algorithm and does not rely on conventional microlens arrays.  High performance operation is driven with image capture (amplitude and phase) and analysis software compatible with Windows 7 or 10.

Product available for purchase now.

Technical specifications

The optical specifications of QuantoPhase™ wavefront sensors are given below:
  • Sampling: up to 512 x 512
  • Spatial resolution: 30 microns x lambda / 532 nm
  • Precision: lambda / 100
  • Dynamic range: 100 x lambda
  • Wavelength: 1064 nm / 532 nm (user specified)
  • Optical bandwidth: ±100 nm at operational wavelength
  • 1064/532 model covers 632.8 nm HeNe
  • Limited by silicon camera response (≤1080 nm)
  • Detection area: 11.3 mm x 11.3 mm
Additional features of QuantoPhase™ wavefront sensors include:
  • Calculation of Zernike/Legendre coefficients
  • Beam propagation calculation based on measured wavefront
  • User-specified wavelength: visible through NIR
  • Up to 10Hz data rate
  • Externally triggerable capture
  • USB3 communication
  • Included software for capture and analysis

Cavityless Tunable Picosecond Pulse Source


Ultra-low-noise, 40-GHz laser pulses with seamless ultrawide wavelength tuning


The Cavityless™ Series tunable picosecond pulse source is the first ultrafast fiber laser which provides ultra-low-jitter pulses without relying on mode-locking and its inherent instabilities. The new technology provides programmable-rate, pulsed laser output with true continuous λ-tuning uninhibited by the traditional use of optical cavities.

Seamless ultrawide tunability


Free from the typical constraints inherent to cavity-based mode-locked lasers, the Cavityless Series is the first laser source to combine seamless wavelength tunability and continuously programmable repetition rate that simply cannot be matched by conventional mode-locked technology. The Cavityless Series is the first laser to simultaneously provide:
  • True continuous (mode-hop-free) C+L wavelength tunability
  • Short pulses (< 2.5ps)
  • High, programmable repetition rate (up to 56 GHz)
  • High power (200 mW)
  • “Instant-on” turn-key operation without cavity stabilization or locking

Excellent pulse shape with high extinction ratio

Technical specifications

The optical specifications of QuantoPhaseTM™ wavefront sensors are given below:
  • Sampling: up to 512 x 512
  • Spatial resolution: 30 microns x lambda / 532 nm
  • Precision: lambda / 100
  • Dynamic range: 100 x lambda
  • Wavelength: 1064 nm / 532 nm (user specified)
  • Optical bandwidth: ±100 nm at operational wavelength
  • 1064/532 model covers 632.8 nm HeNe
  • Limited by silicon camera response (≤1080 nm)
  • Detection area: 11.3 mm x 11.3 mm
Additional features of QuantoPhaseTM wavefront sensors include:
  • Calculation of Zernike/Legendre coefficients
  • Beam propagation calculation based on measured wavefront
  • User-specified wavelength: visible through NIR
  • Up to 10Hz data rate
  • Externally triggerable capture
  • USB3 communication
  • Included software for capture and analysis

SPA Single-Pulse Fiber Amplifier


Low-noise amplification of pulses operating outside the CW regime


SPA series fiber amplifiers are designed to provide low-noise amplification of signals not operating in the continuous-wave regime, such as a single optical pulse. In contrast to conventional continuous-wave or average-power amplifiers that reply on saturation conditions, the SPA series uses specialized design to provide low-noise amplification. Correspondingly, the noise properties of the SPA fiber amplifiers are inherently stable regardless of input pulse energy, pulse duration, or pulse format.

Ultra-low noise floor

– Measured (absolute) power in 0.1-nm bandwidth (1064-nm model)


SPA series fiber amplifiers comes in a convenient turn-key package, with FC/APC receptacles for connecting to your optical system. The optical gain is stabilized internal to the package such that no external user controls are required. Layers of built-in filtration and isolation result in a stabilized gain block that can be inserted into almost any optical system to produce clean, amplified pulses.

Technical specifications

The optical specifications of QuantoPhaseTM™ wavefront sensors are given below:
  • Sampling: up to 512 x 512
  • Spatial resolution: 30 microns x lambda / 532 nm
  • Precision: lambda / 100
  • Dynamic range: 100 x lambda
  • Wavelength: 1064 nm / 532 nm (user specified)
  • Optical bandwidth: ±100 nm at operational wavelength
  • 1064/532 model covers 632.8 nm HeNe
  • Limited by silicon camera response (≤1080 nm)
  • Detection area: 11.3 mm x 11.3 mm
Additional features of QuantoPhaseTM wavefront sensors include:
  • Calculation of Zernike/Legendre coefficients
  • Beam propagation calculation based on measured wavefront
  • User-specified wavelength: visible through NIR
  • Up to 10Hz data rate
  • Externally triggerable capture
  • USB3 communication
  • Included software for capture and analysis

MLM Directly Modulated Laser Mounts


14-pin or 7-pin + RF connector, including bias current noise filtering


MLM series laser mounts are designed for housing directly modulated butterfly-package lasers in a convenient heat-sinked package for OEM or lab use. The mounts come in two varieties: a 14-pin butterfly package modulated though one of the pins, or a butterfly package with 7-pins and an RF-connector for modulation. Both varieties can have either direct soldering for permanent laser installation or a socket holder for simple interchanging of lasers.
The 14-pin butterfly package MLM is designed for 2.5 Gb/s modulation. All MLM units include bias current noise filtering integrated directly on the board. Lasers are not included.

Technical specifications

The connection specifications of MLM series laser mounts are shown below:
The physical specifications of MLM series laser mounts are shown below:

Custom Fiber Modules


RAM Photonics provides custom passive and active fiber modules for demanding applications


RAM Photonics specializes in customized fiber-optic solutions for demanding applications. Whether it be for passive networks, amplification, laser sources, fiber pulse delivery, or data processing, RAM Photonics has extensive experience in fiber-based solutions in the areas of:
  • High performance specialty laser sources and amplifiers
  • Advanced signal processing and communications
  • Exploitation and suppression of nonlinearities
  • Precision and remote sensing
  • High power fiber systems
  • Precision diagnostics
  • Low SWaP metrics
  • EMI resistance

Contact RAM Photonics to discuss custom solutions for your demanding application: