What is the use of laser diode?

1 Answer

Answer :

laser diodes are use in telecommunication, rangefinders, barcode readers etc.

Related questions

Description : Explain the operating principle of LASER and list applications of LASER diode.

Last Answer : A basic construction of Laser diode is as shown . A PN junction is formed by two layers of doped gallium arsenide. There is highly reflective surface at one end of PN junction and ... 6. laser scanning and light beam illumination. 7. Military applications 8. Medical surgery 9.Diamond cutting

Description : What is the use of Schottky diode?

Last Answer : Schottky diode are use in SMPS, Sample and hold circuits and voltage clamping etc.

Description : What is the use of fast recovery diode?

Last Answer : Fast recovery diode are used in high frequency rectification. Fast recovery diode also used for freewheeling. Fast recovery diode also used for DC to DC converter.

Description : How to Use a Laser Level

Last Answer : How to Use a Laser Level Compared to the ordinary level, a laser level is more efficient and easier to use. It projects a laser beam forward, making sure the measurements for the project you ... quicker and more efficiently. Just remember these steps and tips when you're working with this tool.

Description : What is the use of diode in the circuit?

Last Answer : Diode is a device which allows the flow of current in one direction and blocks the current in opposite direction.

Description : Can we use a zener diode as a rectifier?

Last Answer : Yes we can use zener diode as rectifier but it have limitations better to use normal diode. Zener diode have some different applications.

Description : What is the use of Tunnel diode ?

Last Answer : Tunnel diode is use in frequency converters and detectors, ultra high speed switching, amplifiers, etc.

Description : Write the function of freewheeling diode.

Last Answer : Function of Freewheeling Diode (FWD): a) Freewheeling diode is used across inductive loads such as coils, dc motor armature etc. to prevent voltage spikes across these loads when the switching ... current is shifted from switching device, it is turned off easily and regain its blocking ability.

Description : Explain the formation of parasitic BJT and parasitic diode in Power MOSFET. Can parasitic diode be used in same power electronics applications?

Last Answer : Parasitic Diode: The parasitic diode is in between drain and source. The MOSFET structure itself contains parasitic diode or body drain diode. This parasitic diode allows the reverse flow of current when the ... of MOSFET as a BJT collector. Parasitic BJT operates in the cut-off region.

Description : Justify the statement. Antiparallel diode is connected across MOSFET.

Last Answer : In MOSFET current is flow from drain to source but when the load is inductive the current may flow in opposite direction. To avoid the opposite flow of current and to protect MOSFET the antiparallel diode is connected across MOSFET.

Description : What would cause a diode to fail?

Last Answer : Supply voltage beyond its limit

Description : What does a Shockley diode do?

Last Answer : It is diode have low forward voltage drop and very high switching action

Last Answer : It is semiconductor diode with a low forward voltage drop and very high switching action

Last Answer : PN junction of zener diode is heavily doped than ordinary diode. For the occurrence of Zener effect the zener diode is heavily doped. If the zener diode is not heavily doped then Zener effect ... breakdown voltage is sharp. If the diode is lightly doped the diode will have higher breakdown voltage.

Last Answer : Yes dynamic impedance of zener diode vary.

Last Answer : Yes, Zener diode is a voltage regulator. Zener diode maintain constant reverse Biased Voltage. If the current is varying then also zener diode maintain constant voltage.

Last Answer : Yes it can be, and it will act like a normal PN junction diode. The characteristic of ZENER diode is exactly same as PN junction diode in forward Bias.

Description : How To Make Laser Experiments

Last Answer : The Red Spot Visible Laser Diodes (VLDs) and Helium Neon (HeNe) lasers both produce a brilliant red spot at great distances. You can do some very annoying things using this property, ... are generated. They appear as warped netting, fine structured traceries of clouds or alien atmospheric phenomena.

Description : How to Get Laser Eye Surgery

Last Answer : How to Get Laser Eye Surgery For people with very poor eyesight, laser eye surgery is one of the many ways to restore a person's clear, vivid, and perfect vision. Millions of people have ... of just about anything, without having to worry about putting your glasses on or wearing your contact lenses.

Description : Which MFP to choose for the home, laser or inkjet?

Last Answer : Which MFP to choose for the home, laser or inkjet? The popularity of multifunctional devices (MFPs) among home users is growing every day, and this is no coincidence. Due to ... devices are characterized by high printing speed, economy and productivity. These indicators are their strength.

Description : Give applications of LASER. 

Last Answer : i) Lasers are used for engraving and embossing of printing plates For example- number plate, name plate etc., ii) Lasers are used in cutting, drilling and welding metals. iii) Lasers are used in ... fiber from one computer to other viii) Lasers are used to find flaws or defect in material. 

Description : Give the full form of LASER. 

Last Answer : Full form :  Light Amplification by Stimulated Emission of Radiation.

Description : Which device use to convert DC to AC?

Last Answer : Rectifier

Description : How does the temperature affect the Zener voltage of a Zener diode?

Last Answer : The Zener voltage of a Zener diode is affected by temperature changes. The Zener voltage of a diode is directly proportional to the temperature. This means that as the temperature increases, the ... is given by the Zener voltage temperature coefficient, which is specified in the diode's datasheet.

Description : Explain Zener Diode.

Last Answer : A Zener diode is a type of semiconductor diode that is designed to operate in the reverse breakdown region of its characteristic curve. Unlike regular diodes, which are designed to conduct ... in surge protectors, power supplies, and other applications where precise voltage regulation is required.

Description : Suggest the diode material suitable to rectify 0.5V AC signal.

Last Answer : The diode material suitable to rectify 0.5V AC signal is silicon

Description : Draw symbols of zener diode and LED.

Last Answer : Symbol of zener diode : Symbol of LED

Description : Diode VI characteristics

Last Answer : Diode VI characteristics

Description : applications of Schottky diode.

Last Answer : 1) To rectify very high frequency signals. 2) As a switching device in digital computers. 3) In clipping & and clamping circuits. 4) In low power schottky TTL circuits. 5) In mixing and detecting circuits used in communication systems. 6) In low voltage power supply circuits.

Description :  applications of P-N junction diode

Last Answer : 1.It is used as rectifier in DC power supply 2.It is used as free wheel diode across relay or inductive load 3.It is used as switch in logic circuits used in computers 4.It is used as detector in demodulation circuits of communication receiver 

Description : Avalanche diode

Last Answer : .embed-container { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; } .embed-container iframe, .embed-container object, .embed-container embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }

Description : State any two applications of zener diode.

Last Answer : Applications of Zener Diode: i) As a voltage regulator. ii) As a fixed reference voltage provider in transistor biasing circuits. iii) As peak clippers or limiters in wave shaping circuits.

Description : List specification of zener diode

Last Answer : 1. Zener Voltage 2. Maximum Zener current 3. Power dissipation 4. Operating temperature 5. Dynamic Resistance 

Description : Define ripple factor and PIV of diode.

Last Answer : 1. Ripple factor: It is define as ratio of R.M.S. value of AC component to the DC component in the output.  2. PIV : It is maximum reverse voltage that diode can withstand without destroying junction.

Description : A zener voltage regulator has load requirements of 12 V and 2 A. The zener diode minimum current requirement is 0.2 A. The minimum voltage at input is 24 V. What is the required value of series resistance with source? A) 5.45 Ω B) 6 Ω C) 7.2 Ω D) 6.38 Ω  

Last Answer : A zener voltage regulator has load requirements of 12 V and 2 A. The zener diode minimum current requirement is 0.2 A. The minimum voltage at input is 24 V. What is the required value of series resistance with source? A) 5.45 Ω B) 6 Ω C) 7.2 Ω D) 6.38 Ω  

Description : A diode in which the change in reverse bias voltage varies the capacitance is called as A) Varactor diode B) Switching diode C) Tunnel diode D) Zener-diode  

Last Answer : A diode in which the change in reverse bias voltage varies the capacitance is called as Varactor diode

Description : Which diode exhibits negative resistance characteristic? (A) LED (B) Zener (C) Tunnel diode (D) PN diode

Last Answer : Which diode exhibits negative resistance characteristic? (A) LED (B) Zener (C) Tunnel diode (D) PN diode

Description : What is a diode clamper circuit?

Last Answer : Tha faction of diode 

Description : How can you identify a zener diode?

Last Answer : It  conducts  current  in  either  direction.

Description : How do we test a diode?

Last Answer : test

Description : Write short notes on diode.

Last Answer : Diode is made from semiconductor material like silicon or germanium. Diode may use as rectifier which convert AC to DC. It is a electronic component. It is two terminal device, one is anode and second is ... in one direction. Diode is made from P-type and N-type material. Diode have a PN junction.

Description : what is the minimum voltage required to turn on a diode ?

Last Answer : 0.7 v sil and 0.3 v for gr

Description : How much time a diode takes to switch ON in forward bias condition.

Last Answer : t=0 sec.

Description : what is diode ?

Last Answer : Semiconductor device. That allows flow of current in one direction

Last Answer : In Reverse bias of diode when the cathode is connected to positive and anode is connected to negative very small current flows this very small current is known as leakage current of diode.

Last Answer : Diode conducts when the anode voltage is greater than the cathode voltage.

Last Answer : Diode have two terminals.

Description : What is the use of SCR?

Last Answer : SCR are use in lamp dimming, power regulators, motor control, rectifications of high power AC, control of welding machines and also use as switch these are some uses of silicon controlled rectifier.

Description : How Household Use Electricity And Energy

Last Answer : I have often wondered what the average use of energy of appliances is. Here is a breakdown by percentage usage of each consuming appliance taken from a sampling of US households. Refrigerators 13.7% ... Telephone 0.2 Rechargeable Tools 0.2 Humidifier 0.1 Automobile Block Heater 0.0 Residual 7.3

Description : How To Make Use Of Household Salt

Last Answer : 1. Soak stained hankies in salt water before washing. 2. Sprinkle salt on your shelves to keep ants away. 3. Soak fish in salt water before descaling; the scales will come off easier. 4. Put a ... 't smell and will bake into a dry, light crust which will wipe off easily when the oven has cooled.