EE 47410 Design Problems

EE 47410 Design Problems - EE 47410 Design Problem In the...

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Unformatted text preview: EE 47410 Design Problem In the three following pages are three different design problems for consideration as your assignment for this part of the course. These problems are meant to integrate several parts of the course and are nontrivial but solvable with the information you have learned in the class. The assignment is as follows: 1. Choose one of the problems as your design project. 2. Work on the design BY YOURSELF. Do not work with one of your colleagues in the class or anyone else to perform what is required in the problem. You will receive no credit if I determine that you have worked with someone else. 3. Complete the design exercise before the final exam and turn in your solution at the final exam. EE 47410 Design Problem #1 Part I We wish to couple a laser to a specialty single mode optical fiber that has a mode field diameter of 6 m and a numerical aperture NA = 0.20. You must design your laser waveguide so that you maximize the coupling of the light into the optical fiber consistent with the requirements for the laser listed in Part II. To maximize the manufacturability of the device, you have chosen to use a ridge waveguide design. Your laser will be constructed so that it operates at 1.55 m. For purposes of this design exercise, the coupling to the fiber is to be accomplished by butting the end of the laser up to the end of polished fiber. You may assume intimate contact between the laser facet and the fiber. The fiber is assumed to be coated so that there is no reflection from the fiber. Design the optical waveguide of the laser and specify the materials structure used in the device design, the width and height of the ridge, and the thickness of the core of the waveguide. Calculate the field profiles of the laser beam and estimate the coupling efficiency into the fiber.beam and estimate the coupling efficiency into the fiber....
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EE 47410 Design Problems - EE 47410 Design Problem In the...

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