Optical link system (TTL) Super KEKB accelerator WRTL-2/WSTL-2-WRTL-2/WSTL-2

Optical link system (TTL) Super KEKB accelerator WRTL-2/WSTL-2
Graviton Co., Ltd.

About This Product

We have developed a Laser Source (WSTL-2) and an Optical Receiver (WRTL-2) as an optical link system for TTL pulse signal transmission used for the discharge trigger of the Super KEKB accelerator DR kicker power supply.

■E/O side unit: Laser Source (WSTL-2)・Transmits ultra-low duty TTL signals with a pulse width of several microseconds and a frequency range of 0 to 50Hz using an SM fiber cable.
・The transmission jitter of the trigger signal that changes in the range of 0 to 50 Hz is required to be 100 ps (p-p), and the rise/fall time of the optical output of the E/O side unit and the electrical output of the O/E side unit is approximately 2ns or less.

■O/E side unit: Optical Receiver (WRTL-2)The above specifications are achieved by using it in combination with the E/O side unit "WSTL-2", which was developed at the same time.

Model
There are 1 models for this product.

Product
Optical link system (TTL) Super KEKB accelerator WRTL-2/WSTL-2

Handling Company
Graviton Co., Ltd.

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1 Models of Optical link system (TTL) Super KEKB accelerator WRTL-2/WSTL-2

Image	Part Number	Price (excluding tax)	WSTL-2 adaptive optical fiber	WSTL-2 Number of light emitting elements	WSTL-2 light emitting device	WSTL-2 emission wavelength	WSTL-2 features	WSTL-2 modulation rise time	WSTL-2 light intensity modulation method	WSTL-2 optical output level	WSTL-2 number of optical output channels	WSTL-2 optical output connector	WSTL-2 transmission jitter performance	WRTL-2 power supply voltage, current	WRTL-2 adaptive optical fiber	WRTL-2 logical threshold adjustment function	WRTL-2 features	WRTL-2 maximum light output level	WRTL-2 external dimensions	WRTL-2 Number of light receiving elements	WRTL-2 Photodetector	WRTL-2 receiving wavelength	WRTL-2 receiving frequency band	WRTL-2 Receive output level	WRTL-2 receive output connector	WRTL-2 receive output impedance	WRTL-2 Received signal polarity	WRTL-2 number of output channels	WRTL-2 number of optical input channels	WRTL-2 optical input connector	WRTL-2 optical signal detection method	WRTL-2 transmission jitter performance
	WRTL-2/WSTL-2	Available upon quote	Single mode quartz fiber	2 pieces	Built-in Peltier DFB laser (butterfly type LD module)	1,551nm	Laser light source with TTL modulation function	Less than 500ps (10%-90%)	Direct modulation method using laser drive current modulation Shape the waveform into a square wave inside the device	Logic 1: +5.3dBm, Logic 0: -2.2dBm Wave height center: +3dBm	2 channels	FC receptacle on front panel	Trigger signal that changes arbitrarily in the range of 0~50Hz 100psp-p or less for the edge of the issue*	AC100V, maximum 500mA	Single mode quartz fiber	The optical input level threshold value for output logic judgment can be set using the front panel knob. Setting range is from 0.6mW to 3.4mW, continuously variable	TTL output type optical receiver	+10dBm	Width 430mm, depth 260mm, height 44mm (EIA-1U size) Dimensions do not include protrusions such as connectors, brackets, rubber feet, etc.	2 pieces	InGaAs PIN photodiode	900nm to 1,650nm	DC to 200MHz	TTL compatible, logic 1: 4.5V or more, logic 0: 0V	SMA receptacle on front panel	50Ω, DC coupled	The output is at H level when the optical input is above the threshold, and at L level when it is below the threshold.	2 channels	2 channels	FC receptacle on front panel	Light intensity compatible binary output type detection using O/E converter and comparator Comparator threshold is variable	100psp-p or less for the edge of the trigger signal that changes arbitrarily in the range of 0~50Hz