Products - Semiconductor Optical Amplifiers (SOA)

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Semiconductor optical amplifiers (booster optical amplifiers) are amplifiers which use a semiconductor to provide the gain medium. They have a similar structure to Fabry–Perot laser diodes but with anti-reflection design elements at the end faces. Recent designs include anti-reflective coatings and tilted waveguide and window regions which can reduce end face reflection to less than 0.001%. Since this creates a loss of power from the cavity which is greater than the gain, it prevents the amplifier from acting as a laser.

Optical coherence tomography (OCT) is a low coherence interferometry technique that generates backscattering profiles of tissue. OCT has been very successful in ophthalmology in diagnosing eye diseases and it is widely applied in other areas such as dentistry, endoscopy and dermatology. Light sources are a crucial component in the design of OCT systems as they decide the resolution along the optical axis as well the depth penetration of infrared light in tissue. Swept-source lasers (SSL) are the light source of choice for Fourier domain optical coherence tomography (FDOCT). The gain medium in SSL is most often a semiconductor optical amplifier (SOA). Their main advantage is fast carrier dynamics which ensures fast buildup of lasing within the cavity. Furthermore, a wider tuning range can be achieved by employing several SOAs in parallel.

Part number indentification:

SOA-1020-110-YY-27dB

  • 1020 - Gain spectrum mean wavelength (nm)
  • 110 - gain bandwidth FWHM (nm)
  • YY - type of fiber: PM or HI
  • 27dB - small signal gain fiber-to-fiber (dB)

Available with fibers:

  • 780-HP
  • HI1060
  • SMF-28
  • PM780
  • PM980
  • PM1300

2-pipes BTF module
2-pipes BTF module


Typical parameters of fiber-coupled SOAs

Part number Gain mean
wavelength
Gain
bandwith
FWHM1
Small
signal
gain1
Saturation
output
power2
Noise
figure
Gain
maximum
wavelength
Gain
spectrum
dip
ASE
power
ASE
ripples
RMS3
PER Operating
current
nm nm dB dBm dB nm dB mW dB dB mA
SOA-780-20-YY-30dB 775 20 32 15 6.5 775 - 12 0.03 15 300
SOA-1000-100-YY-30dB 1000 100 33 18 6.5 960, 1030 1 25 0.02 20 600
SOA-1020-110-YY-27dB 1020 110 27 15 7.5 970, 1040 4 15 0.02 20 450
SOA-1030-20-YY-40dB 1030 20 40 18 8 1030 - 70 0.03 20 400
SOA-1060-20-YY-40dB 1060 22 40 18 8 1065 - 60 0.02 20 400
SOA-1060-90-YY-30dB 1060 90 30 18 5 1060 - 7 0.02 20 400
SOA-1080-20-YY-40dB 1080 27 38 17 7 1085 - 40 0.02 20 400
SOA-1130-20-YY-35dB 1125 25 35 15 10 1125 - 30 0.03 20 600
SOA-1140-90-YY-24dB 1140 90 24 17 4.5 1110, 1170 5 1 0.01 20 400
SOA-1190-90-YY-20dB 1190 90 20 15 6.5 1160, 1225 5 0.7 0.02 20 300
SOA-1250-110-YY-27dB 1250 110 27 15 7.5 1210 , 1280 6 5 0.05 20 900
SOA-1290-40-YY-25dB 1285 45 24 12 7.5 1290 - 1 0.02 20 400

1 - @ - 25dBm input signal, gain maximum
2 - @ - 3dB, gain maximum
3 - @ ASE maximum, RMS in 1 nm range, 10pm resolution

Any customized wavelength from the 780-1330 nm range is possible. Please, for the details.