Post holder and post not included

Features

• Si-PIN and InGaAs-PIN photodiodes
• Wavelength range from 320 to 1700 nm
• Ultra-wide bandwidth from 10 kHz up to 2 GHz
• Max. conversion gain 4.75 x 10³ V/W
• Min. NEP 11 pW/√Hz

 

GHz Technology

By combining state of the art photodiodes with the proven and outstanding FEMTO GHz amplifier technology we designed a new family of photoreceivers with a remarkable performance. The HSPR-X and HSA-X-S offer an upper bandwidth limit of 2 GHz. Two models with either a fast Si-PIN or InGaAs-PIN photodiode cover a spectral range from 320 to 1000 nm and 900 to 1700 nm, respectively. Due to the sophisticated amplifier design the minimum NEP is just 11 pW/√Hz at a transimpedance of 5 x 10³ V/A. This allows for the measurement of optical power levels in the µW range with GHz speed.

 

Applications

• Spectroscopy
• Fast pulse and transient measurements
• Optical triggering
• Optical front-end (O/E converter) for oscilloscopes and A/D converters

 

Model	HSA-X-S-1G4-SI	HSPR-X-I-1G4-SI inverting	HSA-X-S-2G-IN	HSPR-X-I-2G-IN inverting
Photodiode	Ø 0.4 mm Si-PIN	Ø 0.4 mm Si-PIN	Ø 0.1 mm InGaAs-PIN	Ø 0.1 mm InGaAs-PIN
Spectral Range	320 ... 1000 nm	320 ... 1000 nm	900 ... 1700 nm	900 ... 1700 nm
Bandwidth (−3 dB)	10 kHz ... 1.4 GHz	10 kHz ... 1.4 GHz	10 kHz ... 2 GHz	10 kHz ... 2 GHz
Rise/Fall Time (10 % - 90 %)	250 ps	250 ps	180 ps	180 ps
Transimpedance Gain	5 x 103 V/A	5 x 103 V/A inverting	5 x 103 V/A	5 x 103 V/A inverting
Conversion Gain	2.55 x 103 V/W (@ 760 nm)	2.55 x 103 V/W (@ 760 nm)	4.75 x 103 V/W (@ 1550 nm)	4.75 x 103 V/W (@ 1550 nm)
NEP (@ 100 MHz)	32 pW/√Hz (@ 760 nm)	19 pW/√Hz (@ 760 nm)	16 pW/√Hz (@ 1550 nm)	11 pW/√Hz (@ 1550 nm)
Output VSWR	2.5 : 1	1.4 : 1	2.5 : 1	1.4 : 1
Maximum Output Voltage @ 50 Ω	1.9 VPP	2.0 VPP	1.9 VPP	2.0 VPP
Output Noise	3.6 mVRMS	2.5 mVRMS	3.6 mVRMS	2.5 mVRMS
Available Input Options	Free space (FS) or FC	Free space (FS) or FC	Free space (FS) or FC	Free space (FS) or FC
Datasheet	122 kB	126 kB	119 kB	114 kB

 

Output short-circuit protected. Threaded M4 and 8-32 mounting holes for use with standard mounting posts. Power supply +15 V via 3-pin Lemo^® socket. A mating connector is provided with the device. Optional power supply PS-15 available. For further information please view the datasheet or contact FEMTO.