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Papers by Eric Monberg

Research paper thumbnail of Exciton states in organic alloys: Naphthalene-perdeuteronaphthalene

Chemical Physics Letters, 1975

Research paper thumbnail of A 7-core erbium doped double-clad fiber amplifier with side-coupled pumping

arXiv: Optics, 2013

We demonstrate a 7-core erbium doped fiber amplifier employing side pumping using tapered multimo... more We demonstrate a 7-core erbium doped fiber amplifier employing side pumping using tapered multimode fiber. The amplifier has multicore inputs and outputs which can be readily spliced to multicore transmission fiber for amplifying space division multiplexed signals. Gain over 25dB was obtained in each of the cores over a 40-nm bandwidth covering C-band.

Research paper thumbnail of Process and apparatus for treating gaseous products of sol-gel manufacturing

Research paper thumbnail of Fiber diameter measurement using spectral interferometry

Conference on Lasers and Electro Optics 2003 Cleo 03, 2003

Figure 1 shows the experimental setup. A broadband pulse is focused on the fiber surface with len... more Figure 1 shows the experimental setup. A broadband pulse is focused on the fiber surface with lens L1 (focal length 5 cm) which has a confocal range larger than the fiber diameter. The light reflected by the fiber is collected by L1 and directed with beamsplitter B.S. to lens L2 which focuses the light into fiber F. Fiber F acts like a pinhole and discriminates against light that is not retro-reflected. The output from fiber F is sent into a spectrometer and the spectrogram recorded on a CCD is analyzed to retrieve the fiber diameter. The detected light comes mainly from interfaces A and B of the fiber with air which have the largest index

Research paper thumbnail of Process of sintering a hanging silica tube so as to exhibit a low bow

Research paper thumbnail of Process for fabricating a preform for optical fibres by a rod-in-tube method

Research paper thumbnail of Silica-based optical fibers and multi-pass sintering

Research paper thumbnail of Multi-pass sintering of a sol-gel body through a hot zone

Research paper thumbnail of Controlled collapse of depressed index optical fiber preforms

Research paper thumbnail of A 7-core erbium doped double-clad fiber amplifier with side-coupled pumping

Research paper thumbnail of High resolution S 2 mode imaging of photonic bandgap fiber

ABSTRACT Spatially and spectrally resolved mode imaging of a 19 cell photonic bandgap fiber with ... more ABSTRACT Spatially and spectrally resolved mode imaging of a 19 cell photonic bandgap fiber with minimum loss at 1550 nm is demonstrated using a high resolution tunable laser and phosphor-coated CCD camera.

Research paper thumbnail of Exciton Percolation: Isotopic-Mixed ^{1}B_{2u} Naphthalene

Physical Review Letters, 1975

ABSTRACT

Research paper thumbnail of Crystal growth of electronic materials

Materials Research Bulletin, 1986

Research paper thumbnail of Vibrational Raman spectrum of orthorhombic BaBr2

The Journal of Chemical Physics, 1974

Polarized Raman spectra are reported for a single crystal of the orthorhombic form of BaBr2. All ... more Polarized Raman spectra are reported for a single crystal of the orthorhombic form of BaBr2. All 18 components of the first-order Raman spectra have been observed, and their symmetry classifications are assigned.

Research paper thumbnail of Optical fibres using sol-gel silica overcladding tubes

Electronics …, 1997

In the course of the experiments, we were able to observe the influence of the fibre gratings UV ... more In the course of the experiments, we were able to observe the influence of the fibre gratings UV induced birefringence [8] on the system performance. Measurements of polarisation-dependent group velocity delay of the gratings used in the experiment indi-cated a value of 8 f 3ps. ...

Research paper thumbnail of Refractive index perturbations in optical fibers resulting from frozen-in viscoelasticity

Applied Physics Letters, 2004

ABSTRACT

Research paper thumbnail of Cross-coherence measurements of supercontinua generated at 1550 nm

… on Lasers and …, 2003

Supercontinua generated in nonlinear fibers are suited to applications such as optical frequency ... more Supercontinua generated in nonlinear fibers are suited to applications such as optical frequency metrology and spectrally sliced WDM sources [1,2]. For such applications, the noise properties of the continuum must be well characterized. Recent simulations show that the coherence ...

Research paper thumbnail of Growth of a large single crystal of orthorhombic BaBr2* 1

Journal of Crystal Growth, 1974

Research paper thumbnail of Process for heat treating a silica glass overcladding tube

Research paper thumbnail of Grating enhanced back scatter fiber for distributed sensing

Conference on Lasers and Electro-Optics, 2016

Research paper thumbnail of Exciton states in organic alloys: Naphthalene-perdeuteronaphthalene

Chemical Physics Letters, 1975

Research paper thumbnail of A 7-core erbium doped double-clad fiber amplifier with side-coupled pumping

arXiv: Optics, 2013

We demonstrate a 7-core erbium doped fiber amplifier employing side pumping using tapered multimo... more We demonstrate a 7-core erbium doped fiber amplifier employing side pumping using tapered multimode fiber. The amplifier has multicore inputs and outputs which can be readily spliced to multicore transmission fiber for amplifying space division multiplexed signals. Gain over 25dB was obtained in each of the cores over a 40-nm bandwidth covering C-band.

Research paper thumbnail of Process and apparatus for treating gaseous products of sol-gel manufacturing

Research paper thumbnail of Fiber diameter measurement using spectral interferometry

Conference on Lasers and Electro Optics 2003 Cleo 03, 2003

Figure 1 shows the experimental setup. A broadband pulse is focused on the fiber surface with len... more Figure 1 shows the experimental setup. A broadband pulse is focused on the fiber surface with lens L1 (focal length 5 cm) which has a confocal range larger than the fiber diameter. The light reflected by the fiber is collected by L1 and directed with beamsplitter B.S. to lens L2 which focuses the light into fiber F. Fiber F acts like a pinhole and discriminates against light that is not retro-reflected. The output from fiber F is sent into a spectrometer and the spectrogram recorded on a CCD is analyzed to retrieve the fiber diameter. The detected light comes mainly from interfaces A and B of the fiber with air which have the largest index

Research paper thumbnail of Process of sintering a hanging silica tube so as to exhibit a low bow

Research paper thumbnail of Process for fabricating a preform for optical fibres by a rod-in-tube method

Research paper thumbnail of Silica-based optical fibers and multi-pass sintering

Research paper thumbnail of Multi-pass sintering of a sol-gel body through a hot zone

Research paper thumbnail of Controlled collapse of depressed index optical fiber preforms

Research paper thumbnail of A 7-core erbium doped double-clad fiber amplifier with side-coupled pumping

Research paper thumbnail of High resolution S 2 mode imaging of photonic bandgap fiber

ABSTRACT Spatially and spectrally resolved mode imaging of a 19 cell photonic bandgap fiber with ... more ABSTRACT Spatially and spectrally resolved mode imaging of a 19 cell photonic bandgap fiber with minimum loss at 1550 nm is demonstrated using a high resolution tunable laser and phosphor-coated CCD camera.

Research paper thumbnail of Exciton Percolation: Isotopic-Mixed ^{1}B_{2u} Naphthalene

Physical Review Letters, 1975

ABSTRACT

Research paper thumbnail of Crystal growth of electronic materials

Materials Research Bulletin, 1986

Research paper thumbnail of Vibrational Raman spectrum of orthorhombic BaBr2

The Journal of Chemical Physics, 1974

Polarized Raman spectra are reported for a single crystal of the orthorhombic form of BaBr2. All ... more Polarized Raman spectra are reported for a single crystal of the orthorhombic form of BaBr2. All 18 components of the first-order Raman spectra have been observed, and their symmetry classifications are assigned.

Research paper thumbnail of Optical fibres using sol-gel silica overcladding tubes

Electronics …, 1997

In the course of the experiments, we were able to observe the influence of the fibre gratings UV ... more In the course of the experiments, we were able to observe the influence of the fibre gratings UV induced birefringence [8] on the system performance. Measurements of polarisation-dependent group velocity delay of the gratings used in the experiment indi-cated a value of 8 f 3ps. ...

Research paper thumbnail of Refractive index perturbations in optical fibers resulting from frozen-in viscoelasticity

Applied Physics Letters, 2004

ABSTRACT

Research paper thumbnail of Cross-coherence measurements of supercontinua generated at 1550 nm

… on Lasers and …, 2003

Supercontinua generated in nonlinear fibers are suited to applications such as optical frequency ... more Supercontinua generated in nonlinear fibers are suited to applications such as optical frequency metrology and spectrally sliced WDM sources [1,2]. For such applications, the noise properties of the continuum must be well characterized. Recent simulations show that the coherence ...

Research paper thumbnail of Growth of a large single crystal of orthorhombic BaBr2* 1

Journal of Crystal Growth, 1974

Research paper thumbnail of Process for heat treating a silica glass overcladding tube

Research paper thumbnail of Grating enhanced back scatter fiber for distributed sensing

Conference on Lasers and Electro-Optics, 2016

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