Recommended Operating Conditions

@ CW, with the housing mounted on a room-temperature heatsink

*- The current at the maximum gain bandwidth may vary by batch.

Gain Characteristics
@ CW, 25°C, 900mA, Input Signal -25dBm @ Maximum Gain Wavelength

- NF = 10log10(2p_ase/Ghv) [D.Baney et al.,  Fiber Optic Technology. 6, 122 (2000)]

Amplified Spontaneous Emission (ASE) Characteristics
@CW, 25°C, 900mA, No Input Signal

** - Measured within a 1nm range around the spectral peak with a 20pm resolution.

Absolute Maximum Ratings

Typical Performance (For Reference Only)
@ CW, Case Mounted on a Room Temperature Heatsink

Gain Spectrum at Different Currents	Gain and Output Power vs. Input Signal

Gain Spectrum at Different Input Signals	Amplified Optical Signal Spectrum

ASE Spectrum (No Input Signal)	Output Power at Different Input Signals

Thermistor Specifications			Optical Fiber Specifications
Parameters	Value	Unit	Parameters	Value	Value	Unit
Type	NTC		Fiber Type	HI1060	PM980
Resistance @ 25℃	10±0.1	kOhm	Numerical Aperture (Typical Value)	0.14	0.12
Beta 25-85°C	3435±1%	K	Cutoff Wavelength	920±50	900±70	nm
			Mode Field Diameter	6.2±0.3   @1060nm	6.6±0.3 @1060nm	µm
			Cladding Diameter	125±1	125±1	µm
			Coating Diameter	245±15	245±15	µm
			Loose Tube Diameter (Optional)	900	900	µm
			Connector	FC/APC	FC/APC
			Key	narrow	narrow

Safety and Operating Instructions

The light emitted by this device is invisible and harmful to the human eye. Avoid direct eye contact with the fiber optic connector when the device is operating. Appropriate laser safety glasses must be worn when operating with the connector exposed.
The absolute maximum rated values should only be applied for short durations. Prolonged exposure to maximum rated values or multiple maximum rated values may cause damage to the device or affect its reliability. Operating the device beyond its maximum rated values may lead to device failure or safety hazards. The power supply used must be the one specified for the component to ensure the maximum forward current is not exceeded.
Devices with thermal radiators require appropriate heat sinks. The device must be mounted to the heat sink using 4 screws (tightened with an X-type bolt, initial torque set to 0.075Nm, and final torque set to 0.15Nm) or fixtures. The flatness deviation of the heat sink surface must be less than 0.05mm. It is recommended to use indium foil or thermally conductive soft material as the thermal interface between the bottom of the housing and the heat sink. Do not use thermal grease for this purpose.
Avoid back-reflections on the device. It may affect the performance of the device in terms of spectral and power stability and could also cause fatal surface damage. It is strongly recommended to use an optical isolator to block back-reflections.
Do not pull the fiber. Do not bend the fiber at a radius smaller than 3 cm. During installation, always protect the fiber end from contamination or damage. After removing the dust cover from the fiber end, use optical lens cleaning paper or cotton swabs soaked in isopropyl alcohol or ethanol to clean the fiber end in one direction carefully. Only use clean fiber connectors to operate the device.
ESD Protection - Electrostatic discharge is a major cause of accidental product failure. Extreme precautions must be taken to prevent ESD. During device installation, ESD protection must be maintained—use wrist straps, grounded work surfaces, and strict anti-static procedures when handling the product.

Model Identification
SOA1250110HI27DBXXXX → 1250nm average gain wavelength, 110nm gain bandwidth, gain of 27dB at maximum gain wavelength, HI-1060 fiber

SOA1250110PM27DBLXXX → 1250nm average gain wavelength, 110nm gain bandwidth, gain of 27dB at maximum gain wavelength, PM-980 fiber, with loose tube