physics

Rod C. Alferness

Rod C. Alferness is a physics topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Rod C. Alferness rather than just read about it. In short: Rod C. Alferness was president of The Optical Society in 2008.

Key takeaways

Rod C. Alferness belongs to physics; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Rod C. Alferness to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Rod C. Alferness from memory before moving on to harder problems.

Reference excerpt

Rod C. Alferness was president of The Optical Society in 2008. Alferness is the dean of the college of engineering at the University of California, Santa Barbara. Before that, Alferness was chief scientist, Bell Laboratories, Alcatel-Lucent and the Bell Laboratories research senior vice president. His previous position was the Bell Laboratories optical networking research senior vice president. Alferness also was the chief technical officer and advanced technology and architecture vice-president of the Optical Networking Group, Lucent Technologies. Prior to that role, he was head of the Photonics Networks Research Department of Lucent Bell Laboratories, Holmdel, New Jersey.

Alferness joined Bell Labs in 1976 after receiving a B.A. in physics from Hamline University and a Ph.D. in physics from the University of Michigan where his thesis research, under the supervision of Professor Emmett Leith, concerned optical propagation in volume holograms. His early research at Bell Labs included the demonstration of novel waveguide electro-optic devices and circuits - including switch/modulators, polarization controllers, tunable filters - and their applications in high capacity lightwave transmission and switching systems. This research led to the early development of titanium diffused lithium niobate waveguide modulators that are now deployed as the high-speed signal-encoding engine in fiber optic transmission systems around the world. Dr. Alferness has also made contributions in photonic integrated circuits in InP, including widely tunable lasers, as well as in photonic switching systems and reconfigurable WDM (wavelength-division-multiplexed) optical networks. In the mid-1990s, he was an originator and the Bell Labs Program Manager for the DARPA funded MONET project which demonstrated the feasibility of wavelength routed optical networks that are now being implemented for both backbone and metro networks. Dr. Alferness has authored over 100 papers, holds 35 patents and has authored five book chapters.

Alferness is a Fellow of The Optical Society and the IEEE Lasers and Electro-Optics Society (LEOS). Alferness received the 2005 IEEE Photonics Award. From Optica, he has received the 2018 Frederic Ives Medal/Jarus W. Quinn Prize and the Robert H. Hopkins Leadership Award. He has served as an elected member of the LEOS AdCom and was the President of IEEE LEOS in 1997. He was general co-chair of the 1994 Optical Fiber Communications Conference (OFC’94). Alferness has served as associate editor for Optics Letters and for Photonics Technology Letters. He has served on many IEEE and OSA committees, including fellows and awards committees. Alferness also currently serves on the European Conference on Optical Communication (ECOC) executive management committee. He served as the editor-in-chief of the IEEE and OSA-sponsored Journal of Lightwave Technology from 1995 to 2000. He served as an elected member of The Optical Society's board of directors from 2001 to 2003.

Alferness was elected as a member into the National Academy of Engineering in 2003 for contributions to the development of electro-optic devices and circuits for light-wave transmission and switching systems.

See also Optical Society of America#Past Presidents of the OSA

References

External links Articles Published by early OSA Presidents Archived 2015-03-20 at the Wayback Machine Journal of the Optical Society of America

Worked examples

Example 1 — a first encounter with Rod C. Alferness

Start with the simplest possible case. Write down what Rod C. Alferness claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In physics, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Rod C. Alferness before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Rod C. Alferness ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Rod C. Alferness

In research: Rod C. Alferness appears in physics research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Rod C. Alferness in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Rod C. Alferness is common in secondary-school and first-year university syllabi. It links to neighbouring topics 21st-century American physicists, American vision scientists, Fellows of Optica (society), so understanding it makes those chapters shorter.
In everyday life: Look for Rod C. Alferness outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Rod C. Alferness in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Rod C. Alferness means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Rod C. Alferness out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Rod C. Alferness in simple terms?

Rod C. Alferness was president of The Optical Society in 2008.

Why does Rod C. Alferness matter?

Because it connects several physics ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Rod C. Alferness?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Rod C. Alferness.