Fabrication and characterization of all-fiber 120-degree optical hybrids (Conference Presentation)

Marie-Helene Bussieres-Hersir; Nicolas Godbout

doi:10.1117/12.2290736

20 March 2018 Fabrication and characterization of all-fiber 120° optical hybrids (Conference Presentation)

Marie-Helene Bussieres-Hersir, Nicolas Godbout

Author Affiliations +

Proceedings Volume 10561, Next-Generation Optical Communication: Components, Sub-Systems, and Systems VII; 105610O (2018) https://doi.org/10.1117/12.2290736
Event: SPIE OPTO, 2018, San Francisco, California, United States

Abstract

Optical hybrids enable the unambiguous measurement of both the amplitude of an optical signal and its phase relative to a reference. A fusion-tapering technique is used to produce monolithic all-fiber 3x3 optical hybrids. By a symmetry argument, theory predicts that an equilateral triangular 3x3 coupler must form a 120° hybrid whenever a power equipartition is obtained during tapering. Precision-machined holding clamps constrain three SMF-28 fibers to an equilateral triangle geometry. An oxygen-propane micro-torch is used for the fusion and tapering steps. Fabricated devices are characterized with respect to insertion loss and relative phases at different wavelengths. Fabricated devices exhibit excess loss less than 1 dB from 1300 to 1600 nm, the coupling ratio is 33,2 ± 2,6% at 1550 nm, the design center wavelength. The relative phases are measured within 120 ± 10° and 240° ± 10° across the whole C-band from 1530 to 1565 nm. Compared to previous work, all-fibre hybrids are fabricated without an outer glass tube, exhibit lower excess loss and good phase tolerance over the whole C-band.

Conference Presentation

Citation Download Citation

Marie-Helene Bussieres-Hersir and Nicolas Godbout "Fabrication and characterization of all-fiber 120° optical hybrids (Conference Presentation)", Proc. SPIE 10561, Next-Generation Optical Communication: Components, Sub-Systems, and Systems VII, 105610O (20 March 2018); https://doi.org/10.1117/12.2290736

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

;

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
PRESENTATION

WATCH
PRESENTATION SAVE TO MY LIBRARY

GET CITATION

KEYWORDS

Hybrid optics

Phase measurement

Glasses

Optical communications

Optical fibers

Telecommunications

Tolerancing

Keywords/Phrases

Search In:

Publication Years