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Guiding & Fiber Injection

Slit and fibre spectroscopy only works if the star stays exactly on a target a few tens of microns wide. Guiding modules use a reflective slit so a guide camera can watch the star sitting on it. Fibre injection units such as the Shelyak FIGU feed the starlight into an optical fibre that carries it to a spectrograph mounted off the telescope, which keeps heavy instruments off the focuser and the spectrograph thermally stable.

We carry the Alpy guiding module, FIGU F/6 and F/9 units, 50 µm object fibres in several lengths, 200 µm calibration fibres, fibre connector kits and eyepiece holders for guiding.

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Shelyak 50µm Object Fiber - 10m
CA$479.00 - CA$479.00
CA$479.00
CA$479.00 - CA$479.00
CA$479.00

Shelyak 50µm Object Fiber - 10m

10m Fiber Length 50µm Core Diameter High-OH Fiber for UV-VIS Transmission (380-800nm) FC-type Connectors (Both Ends) <0.5dB Signal Attenuation ...

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CA$479.00 - CA$479.00
CA$479.00
CA$479.00 - CA$479.00
CA$479.00
Shelyak 50µm Object Fiber - 20m
CA$705.00 - CA$705.00
CA$705.00
CA$705.00 - CA$705.00
CA$705.00

Shelyak 50µm Object Fiber - 20m

50µm Core Diameter 20 Meter Length Less than 0.5dB Attenuation 380-800nm Spectral Range FC-Type Connectors (Both Ends) Description FAQ Specific...

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CA$705.00 - CA$705.00
CA$705.00
CA$705.00 - CA$705.00
CA$705.00
Shelyak 50µm Object Fiber - 5m
CA$313.00 - CA$313.00
CA$313.00
CA$313.00 - CA$313.00
CA$313.00

Shelyak 50µm Object Fiber - 5m

50µm Core Diameter Object Fiber 5m Cable Length FC Type Connectors (Both Ends) 380nm - 800nm+ Wavelength Range Numerical Aperture: 0.22 Less than ...

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CA$313.00 - CA$313.00
CA$313.00
CA$313.00 - CA$313.00
CA$313.00
CA$1,604.00 - CA$1,604.00
CA$1,604.00
CA$1,604.00 - CA$1,604.00
CA$1,604.00

Shelyak Alpy Guiding Module

Essential guiding accessory for Alpy 600 & UVEX spectroscopes Ensures precise centering of the target star on the spectroscope slit Utilizes a...

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CA$1,604.00 - CA$1,604.00
CA$1,604.00
CA$1,604.00 - CA$1,604.00
CA$1,604.00
Shelyak Calibration Optical Fiber - 200µm, 10m
CA$731.00 - CA$731.00
CA$731.00
CA$731.00 - CA$731.00
CA$731.00

Shelyak Calibration Optical Fiber - 200µm, 10m

Core Diameter: 200µm Length: 10 meters Connectors: FC-FC Numerical Aperture: 0.22 Protection: Stainless Steel Sheath Attenuation: <0.5dB ...

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CA$731.00 - CA$731.00
CA$731.00
CA$731.00 - CA$731.00
CA$731.00
Shelyak Eyepiece Holder for Guiding
CA$511.00 - CA$511.00
CA$511.00
CA$511.00 - CA$511.00
CA$511.00

Shelyak Eyepiece Holder for Guiding

Enables direct visual guiding for spectrographs Accepts standard 1.25" eyepieces Replaces the need for a dedicated guide camera and software Desig...

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CA$511.00 - CA$511.00
CA$511.00
CA$511.00 - CA$511.00
CA$511.00
Shelyak Fiber Optic Adapter for Alpy 600
CA$237.00 - CA$237.00
CA$237.00
CA$237.00 - CA$237.00
CA$237.00

Shelyak Fiber Optic Adapter for Alpy 600

Connects FC Standard Fiber Optics to the Alpy 600 Spectroscope Replaces the Standard 25µm Slit for Remote Light Injection Enables Bench-Mounted Se...

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CA$237.00 - CA$237.00
CA$237.00
CA$237.00 - CA$237.00
CA$237.00
Shelyak Fiber Optic Connector Kit for UVEX
CA$329.00 - CA$329.00
CA$329.00
CA$329.00 - CA$329.00
CA$329.00

Shelyak Fiber Optic Connector Kit for UVEX

Adapts the Shelyak UVEX spectrograph for fiber optic input Enables physical separation of the telescope and spectrograph Ideal for permanent obser...

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CA$329.00 - CA$329.00
CA$329.00
CA$329.00 - CA$329.00
CA$329.00
Shelyak FIGU F/6 – 50µm Fiber Injection and Guiding Unit
CA$5,356.00 - CA$5,356.00
CA$5,356.00
CA$5,356.00 - CA$5,356.00
CA$5,356.00

Shelyak FIGU F/6 – 50µm Fiber Injection and Guiding Unit

eShel Spectrograph Interface: Mounts at the telescope focus to feed starlight into the required optical fiber for Shelyak eShel and Whoppshel syst...

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CA$5,356.00 - CA$5,356.00
CA$5,356.00
CA$5,356.00 - CA$5,356.00
CA$5,356.00
Shelyak FIGU F/9 – 50µm Fiber Injection & Guiding Unit
CA$6,662.00 - CA$6,662.00
CA$6,662.00
CA$6,662.00 - CA$6,662.00
CA$6,662.00

Shelyak FIGU F/9 – 50µm Fiber Injection & Guiding Unit

Optimized for F/9 telescope optical systems Injects starlight into a 50µm core optical fiber Integrated guiding port for precise target centering ...

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CA$6,662.00 - CA$6,662.00
CA$6,662.00
CA$6,662.00 - CA$6,662.00
CA$6,662.00
Shelyak Instruments 200µm Calibration Optical Fiber - 20m
CA$1,090.00 - CA$1,090.00
CA$1,090.00
CA$1,090.00 - CA$1,090.00
CA$1,090.00

Shelyak Instruments 200µm Calibration Optical Fiber - 20m

20 meter length for flexible observatory layouts 200µm core diameter optimized for calibration sources Secure FC-FC connectors for standard astron...

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CA$1,090.00 - CA$1,090.00
CA$1,090.00
CA$1,090.00 - CA$1,090.00
CA$1,090.00

Choosing Components

  • FIGU F/6 or F/9: Pick the version that matches your telescope's focal ratio.
  • Fibre length: Long enough to reach the spectrograph's location without stress, short enough to limit light loss.
  • Guide camera: A sensitive mono camera with small pixels sees the star on the reflective slit clearly.

Setting up guiding for spectroscopy?

Tell us your spectrograph and telescope. We will list the parts.