1550nm polarization-preserving acousto-optic modulator 40MHz

Acousto-optic modulators are widely used in the field of fiber optic sensing due to their advantages such as high modulation extinction ratio and high power handling. This product is specially developed for the application requirements of fiber optic sensing, and has the advantages of small size, low power consumption (<1W), fast rise time (12ns), good modulation pulse shape (small overshoot), good pulse repeatability (small repetition cycle jitter), etc. In addition, the modulator and driver can be packaged in an integrated manner, which is convenient for system integration. It can be widely used in various fiber optic sensing systems that require pulse modulation, such as φ-OTDR, BOTDR, OFDR, etc.

Product features：Small size 、 Low power consumption (<500mW) 、 Fast rise time (12ns) 、 Good modulation pulse shape (small overshoot) 、 Good pulse repeatability (small jitter in repetition period)

Application area：Fiber optic sensing 、 LiDAR 、 BOTDA

Unit Price

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Part Number

AOM40-1550-1-PA

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Stock

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General Parameters

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Dimensional Drawing

Parameters	Unit	Min	Max	Typ	Note
Material				TeO2
Wavelength	nm	1520	1580	1550
Average optical power (CW)	W			0.5
Ultrasonic sound velocity	m/s			4200
Insertion loss	dB			2.5
Polarization extinction ratio	dB	18	23	20
Extinction ratio	dB	50	55	50
Return loss	dB	40
Rise time	ns			60
Frequency	MHz			40
Frequency shift	MHz			+/-40	Can be specified
Frequency stability				0.1%
RF power	W			2.5
VSWR				1.2:1
Input impedance	Ω			50
Device interface				SMA
Fiber type	PM1550
Fiber length	m			1.2
Fiber interface				FC/APC
Operating temperature	℃			-20~60
Storage temperature	℃			-30~70

Test Diagram

RIO's narrow linewidth lasers, 1550nm PM acousto-optic modulators, and EOT 2.5G optoelectronic instruments

Modulation curve

The modulation signal applied to the AOM from the signal generator:

The oscilloscope displays the voltage signal output from the detector:

A: AOM Dimensions

B: Driver Dimensions

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