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- How to Get Real Waveguide Mode Data Into ZEMAX
How to Get Real Waveguide Mode Data Into ZEMAX
- By Mark Nicholson
- Published 20 January 2007
- Fiber Coupling , Physical Optics
- Unrated
Introduction
ZDC thanks Steve Dods of OptiWave Corporation for supplying the SMF-28 fiber simulation data used in this article.
This article is also available in Japanese.
In the article How to Model Coupling Between Single-Mode Fibers SMF-28 single mode fiber is modeled using data from the manufacturer's datasheet. The only data provided on the optical radiation produced at 1.31 is the mode field diameter, which is stated to be 9.2 ± 0.4 µm.
As a result, the fiber mode of both launch and receiver fibers was entered as a Gaussian (TEM0,0) mode of waist 4.6µ. The resulting fiber coupling calculation agrees well with experimental measurement.
However, ZEMAX can now import directly the modal fields computed by OptiWave Corporation's OptiBPM and OptiFiber codes. These codes are specialized integrated-optics codes which produce field distributions for optical fiber or waveguides integrated on a substrate, including channel waveguides, rib or ridge waveguides, buried waveguides or waveguides from a diffused process. This allows fields computed by these specialized codes to be propagated through bulk optical systems in ZEMAX. OptiBPM and OptiFiber can both read the .zbf files produced by ZEMAX, so that the results of a physical optics propagation through an optical system can be used as the input to one of their waveguide models.
In this article we will compare the OptiBPM simulation of SMF-28 fiber to the manufacturer's datasheet.
This article is also available in Japanese.
In the article How to Model Coupling Between Single-Mode Fibers SMF-28 single mode fiber is modeled using data from the manufacturer's datasheet. The only data provided on the optical radiation produced at 1.31 is the mode field diameter, which is stated to be 9.2 ± 0.4 µm.
As a result, the fiber mode of both launch and receiver fibers was entered as a Gaussian (TEM0,0) mode of waist 4.6µ. The resulting fiber coupling calculation agrees well with experimental measurement.
However, ZEMAX can now import directly the modal fields computed by OptiWave Corporation's OptiBPM and OptiFiber codes. These codes are specialized integrated-optics codes which produce field distributions for optical fiber or waveguides integrated on a substrate, including channel waveguides, rib or ridge waveguides, buried waveguides or waveguides from a diffused process. This allows fields computed by these specialized codes to be propagated through bulk optical systems in ZEMAX. OptiBPM and OptiFiber can both read the .zbf files produced by ZEMAX, so that the results of a physical optics propagation through an optical system can be used as the input to one of their waveguide models.
In this article we will compare the OptiBPM simulation of SMF-28 fiber to the manufacturer's datasheet.