astronomy

Giok Djan Khoe

Giok Djan Khoe is a astronomy 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 Giok Djan Khoe rather than just read about it. In short: Djan (Giok Djan) Khoe (born 22 July 1946) is a photonic scientist and Professor Emeritus at the Eindhoven University of Technology, The Netherlands. Career Khoe was born in Magelang, Central Java, Indonesia.

Key takeaways

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

Reference excerpt

Djan (Giok Djan) Khoe (born 22 July 1946) is a photonic scientist and Professor Emeritus at the Eindhoven University of Technology, The Netherlands.

Career Khoe was born in Magelang, Central Java, Indonesia. He received a master's degree in electrical engineering, cum laude, from the Eindhoven University of Technology in Eindhoven, The Netherlands, in 1971. His graduation thesis described a novel method for measuring the properties of turbulent air and was published in the Proceedings of the IEEE. He started research at the Dutch Foundation for Fundamental Research on Matter (FOM) Laboratory on Plasma Physics, Rijnhuizen. In 1973, he moved to Philips Research Laboratories in Eindhoven working in the area of optical fiber communication systems and components. In 1983 he became part time professor at Eindhoven University of Technology. He became a full professor at the same university in 1994 and served as chairman of the Department of Telecommunication Technology and Electromagnetics (TTE) until 2008. His publications and patents describe photonic communication systems and photonic devices. Together with Philips, his group achieved a record bit rate of 10 Gbit/s over 420 km single mode silica fiber using 1300 nm wavelength.

Together with Yasuhiro Koike, a polymer scientist at Keio University, he pioneered in high transmission speed over graded index polymer optical fibers (GIPOF), a form of Plastic Optical Fiber. They demonstrated that Gigabit transmission is possible as well as transmission with multiple wavelenghts and achieved a record bit rate of 2.5 Gbit/s in 1999.

He is Life Fellow of the Institute of Electronic and Electrical Engineers (IEEE), Fellow of the Optica Society (formerly Optical Society of America) and Officer of the Order of Orange-Nassau, a Dutch Royal Honour. He was President of the IEEE Photonics Society in 2003, a recipient of the IEEE Photonic Society Distinguished Services Award in 2009, and the 1997 MOC/GRIN award.

Awards and recognition 1991: Fellow of the IEEE (Institute of the Electrical and Electronics Engineers) for contributions in Single Mode Fibre Systems and Devices. 1997: MOC/GRIN Award for contributions in micro-optics and gradient index optical systems. 2000: Invited author, Millennium Issue, IEEE Journal of Selected Topics in Quantum Electronics, vol.6, pp.1265–1272. 2003: President, IEEE Photonics Society. 2006: Fellow of the OSA (Optical Society of America) for sustained contributions in Photonic Systems and Academic Leadership. 2009: IEEE Photonics Society Distinguished Services Award for exemplary vision and leadership enabling sustained growth and broadened involvement of Photonics Society, particularly student members and international activities. 2011: Officer in the Order of Orange-Nassau, a Dutch Royal Honour for outstanding service of national and international importance. 2012: IEEE Life Fellow.

Books R. Van Santen, G.D. (Djan) Khoe, and B Vermeer. 2030: Technology that will change the World. Oxford University Press, 2010. Translated into Arabic, Chinese, Indonesian, and Korean.

References

Worked examples

Example 1 — a first encounter with Giok Djan Khoe

Start with the simplest possible case. Write down what Giok Djan Khoe claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In astronomy, 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 Giok Djan Khoe 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 Giok Djan Khoe 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 Giok Djan Khoe

In research: Giok Djan Khoe appears in astronomy 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 Giok Djan Khoe 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: Giok Djan Khoe is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1946 births, 20th-century Indonesian scientists, 20th-century inventors, so understanding it makes those chapters shorter.
In everyday life: Look for Giok Djan Khoe 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 Giok Djan Khoe in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Giok Djan Khoe 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 Giok Djan Khoe out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Giok Djan Khoe in simple terms?

Djan (Giok Djan) Khoe (born 22 July 1946) is a photonic scientist and Professor Emeritus at the Eindhoven University of Technology, The Netherlands. Career Khoe was born in Magelang, Central Java, Indonesia.

Why does Giok Djan Khoe matter?

Because it connects several astronomy 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 Giok Djan Khoe?

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 Giok Djan Khoe.