Spectra Quest Lab

Spectra Quest Lab offers fiber amplifiers in the 900-nm band (890–930 nm) with an average power of 20 dBm and peak power of over 100 W. In addition, in the 1-μm band, we also offer broadband fiber amplifiers for 975 nm – 1090 nm.

By combining a fiber amplifier section and a highly efficient, broadband tunable filter in multiple stages, transmission of ASE light other than the set wavelength to the next stage is suppressed, realizing a fiber amplifier with an unprecedentedly broad amplification bandwidth.

Spectra Quest Lab offers ns/ps tunable lasers and light sources in the 900-nm band and 1-μm band.

The tunable laser uses a CW narrow linewidth tunable laser as a seed source, and after nanosecond pulse generation with a pulsed SOA, the ns pulse is further amplified with a fiber amplifier to obtain a Fourier-limited linewidth pulse.

The tunable light source is a system in which broadband ASE light from a pulsed SOA is selected with a spectral width of 0.2 nm by a tunable filter and amplified by a fiber amplifier, making it cost-effective and simple configuration.

Both can output pulse widths of 1–10 ns and support repetition rates from single shot to 100 MHz on pulse on demand. External synchronization is easily achieved with electrical trigger input/output. Optionally, a picosecond pulse output can be obtained by passing a pulse shaper consisting of an LiNbO₃ modulator and an electric pulse generator before the fiber amplifier input.

Spectra Quest Labs offers tunable single frequency lasers (linewidth < 100 kHz) up to 100 mW with ASE-suppressed optical output (SMSR > 80 dB) through a PM fiber:

• λ-Master offers precise wavelength control and is suitable for laboratory users.
• λ-Rapid offers fast wavelength sweep.
• λ-Lock is suitable for manual wavelength control.

All are equipped with an analog wavelength tuning function using PZT and LD current modulation function (BW: 5 MHz) and can also perform analog wavelength tuning and frequency locking.

Spectra Quest Lab offers ns/ps tunable lasers and light sources in the 900-nm band and 1-μm band.

The tunable laser uses a CW narrow linewidth tunable laser as a seed source, and after nanosecond pulse generation with a pulsed SOA, the ns pulse is further amplified with a fiber amplifier to obtain a Fourier-limited linewidth pulse.

The tunable light source is a system in which broadband ASE light from a pulsed SOA is selected with a spectral width of 0.2 nm by a tunable filter and amplified by a fiber amplifier, making it cost-effective and simple configuration.

Both can output pulse widths of 1–10 ns and support repetition rates from single shot to 100 MHz on pulse on demand. External synchronization is easily achieved with electrical trigger input/output. Optionally, a picosecond pulse output can be obtained by passing a pulse shaper consisting of an LiNbO₃ modulator and an electric pulse generator before the fiber amplifier input.

Spectra Quest Lab offers ns/ps tunable lasers and light sources in the 900-nm band and 1-μm band.

The tunable laser uses a CW narrow linewidth tunable laser as a seed source, and after nanosecond pulse generation with a pulsed SOA, the ns pulse is further amplified with a fiber amplifier to obtain a Fourier-limited linewidth pulse.

The tunable light source is a system in which broadband ASE light from a pulsed SOA is selected with a spectral width of 0.2 nm by a tunable filter and amplified by a fiber amplifier, making it cost-effective and simple configuration.

Both can output pulse widths of 1–10 ns and support repetition rates from single shot to 100 MHz on pulse on demand. External synchronization is easily achieved with electrical trigger input/output. Optionally, a picosecond pulse output can be obtained by passing a pulse shaper consisting of an LiNbO₃ modulator and an electric pulse generator before the fiber amplifier input.

Spectra Quest Lab offers 1-W class wide band semiconductor optical amplifiers in the 900-nm and 1-μm band. The SOAs are capable of efficient coupling to PM fiber. Unlike tapered amplifiers, its SOA has extremely low wavelength and LD current dependence of coupling efficiency to PM fiber, making it suitable for applications involving wavelength tuning of input light and LD modulation. In addition, its pulse current driver can easily generate nanosecond pulses.

Spectra Quest Lab offers ASE light sources in the 950-nm and 1040-nm bands. They have a very low gain ripple of typically 0.03 dB (RMS) and relatively flat spectral characteristics with a 3 dB bandwidth above 50 nm; PM fiber-coupled output power is 100 mW (typ.) and have come as turnkey bench-top packages. A current modulation port with 1 MHz bandwidth is provided for high-speed modulation.

Spectra Quest Lab offers a 5-μW class CW tunable terahertz light source emitting from 300 GHz to 4.5 THz. It utilizes A UTC-PD (Uni-Travelling Carrier Photo Diode) as a terahertz mixer, and ASE-free tunable diode laser as a mixing light source. The UTC-PD developed by NTT-EL enables highly efficient generation of THz waves. Our ASE-free tunable diode laser, developed by ourselves, realizes low-noise THz wave and wide and rapid tuning with a high resolution.

Spectra Quest Lab offers tunable lasers providing mode-hop-free tuning over nearly the entire tunable range wider than 100 nm while suppressing ASE noise (SMSR > 80dB) and delivering high PM fiber output power at any wavelength model. Available from 880 nm to 1680 nm.

The high precision model λ-Master is suitable for laboratory use and has a data acquisition function that is synchronized with wavelength tuning.

The high scan rate model: λ-Rapid achieves scan rates of up to 600 nm/s, making it suitable for frequency domain measurements such as OFDR. It is compact and can be installed in instruments.

λ-Lock is a manual tuning model.

All models have an analog wavelength tuning function using PZT and LD current modulation function (bandwidth: 5 MHz).

The tunable bandpass filter offered by Spectra Quest Lab is an ideal filter with low loss (<3 dB), wide bandwidth (100 nm), and narrow linewidth (min. 0.03 nm) due to its unique optical structure. Input and output are via PM fibers. Wavelength tuning is done manually (adjustment by micrometer head) or automatically (adjustment by stepping motor). Different wavelength ranges are available: 870–960, 920–1020, 980–1080, and 1010–1110 nm.